webkitgtk-2.4.9webkitgtk-2.4.9

16 files changed, 0 insertions, 1913 deletions

diff --git a/Source/JavaScriptCore/builtins/Array.prototype.js b/Source/JavaScriptCore/builtins/Array.prototype.js
deleted file mode 100644
index af46dd8fe..000000000
--- a/Source/JavaScriptCore/builtins/Array.prototype.js
+++ /dev/null
@@ -1,644 +0,0 @@
-/*
- * Copyright (C) 2014, 2015 Apple Inc. All rights reserved.
- * Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-function reduce(callback /*, initialValue */)
-{
-    "use strict";
-    if (this === null)
-        throw new @TypeError("Array.prototype.reduce requires that |this| not be null");
-
-    if (this === undefined)
-        throw new @TypeError("Array.prototype.reduce requires that |this| not be undefined");
-
-    var array = @Object(this);
-    var length = @toLength(array.length);
-
-    if (typeof callback !== "function")
-        throw new @TypeError("Array.prototype.reduce callback must be a function");
-
-    if (length === 0 && arguments.length < 2)
-        throw new @TypeError("reduce of empty array with no initial value");
-
-    var accumulator, k = 0;
-    if (arguments.length > 1)
-        accumulator = arguments[1];
-    else {
-        while (k < length && !(k in array))
-            k += 1;
-        if (k >= length)
-            throw new @TypeError("reduce of empty array with no initial value");
-        accumulator = array[k++];
-    }
-
-    while (k < length) {
-        if (k in array)
-            accumulator = callback.@call(undefined, accumulator, array[k], k, array);
-        k += 1;
-    }
-    return accumulator;
-}
-
-function reduceRight(callback /*, initialValue */)
-{
-    "use strict";
-    if (this === null)
-        throw new @TypeError("Array.prototype.reduceRight requires that |this| not be null");
-
-    if (this === undefined)
-        throw new @TypeError("Array.prototype.reduceRight requires that |this| not be undefined");
-
-    var array = @Object(this);
-    var length = @toLength(array.length);
-
-    if (typeof callback !== "function")
-        throw new @TypeError("Array.prototype.reduceRight callback must be a function");
-
-    if (length === 0 && arguments.length < 2)
-        throw new @TypeError("reduceRight of empty array with no initial value");
-
-    var accumulator, k = length - 1;
-    if (arguments.length > 1)
-        accumulator = arguments[1];
-    else {
-        while (k >= 0 && !(k in array))
-            k -= 1;
-        if (k < 0)
-            throw new @TypeError("reduceRight of empty array with no initial value");
-        accumulator = array[k--];
-    }
-
-    while (k >= 0) {
-        if (k in array)
-            accumulator = callback.@call(undefined, accumulator, array[k], k, array);
-        k -= 1;
-    }
-    return accumulator;
-}
-
-function every(callback /*, thisArg */) {
-    "use strict";
-    if (this === null)
-        throw new @TypeError("Array.prototype.every requires that |this| not be null");
-    
-    if (this === undefined)
-        throw new @TypeError("Array.prototype.every requires that |this| not be undefined");
-    
-    var array = @Object(this);
-    var length = @toLength(array.length);
-
-    if (typeof callback !== "function")
-        throw new @TypeError("Array.prototype.every callback must be a function");
-    
-    var thisArg = arguments.length > 1 ? arguments[1] : undefined;
-    
-    for (var i = 0; i < length; i++) {
-        if (!(i in array))
-            continue;
-        if (!callback.@call(thisArg, array[i], i, array))
-            return false;
-    }
-    
-    return true;
-}
-
-function forEach(callback /*, thisArg */) {
-    "use strict";
-    if (this === null)
-        throw new @TypeError("Array.prototype.forEach requires that |this| not be null");
-    
-    if (this === undefined)
-        throw new @TypeError("Array.prototype.forEach requires that |this| not be undefined");
-    
-    var array = @Object(this);
-    var length = @toLength(array.length);
-
-    if (typeof callback !== "function")
-        throw new @TypeError("Array.prototype.forEach callback must be a function");
-    
-    var thisArg = arguments.length > 1 ? arguments[1] : undefined;
-    
-    for (var i = 0; i < length; i++) {
-        if (i in array)
-            callback.@call(thisArg, array[i], i, array);
-    }
-}
-
-function filter(callback /*, thisArg */) {
-    "use strict";
-    if (this === null)
-        throw new @TypeError("Array.prototype.filter requires that |this| not be null");
-    
-    if (this === undefined)
-        throw new @TypeError("Array.prototype.filter requires that |this| not be undefined");
-    
-    var array = @Object(this);
-    var length = @toLength(array.length);
-
-    if (typeof callback !== "function")
-        throw new @TypeError("Array.prototype.filter callback must be a function");
-    
-    var thisArg = arguments.length > 1 ? arguments[1] : undefined;
-    var result = [];
-    var nextIndex = 0;
-    for (var i = 0; i < length; i++) {
-        if (!(i in array))
-            continue;
-        var current = array[i]
-        if (callback.@call(thisArg, current, i, array)) {
-            @putByValDirect(result, nextIndex, current);
-            ++nextIndex;
-        }
-    }
-    return result;
-}
-
-function map(callback /*, thisArg */) {
-    "use strict";
-    if (this === null)
-        throw new @TypeError("Array.prototype.map requires that |this| not be null");
-    
-    if (this === undefined)
-        throw new @TypeError("Array.prototype.map requires that |this| not be undefined");
-    
-    var array = @Object(this);
-    var length = @toLength(array.length);
-
-    if (typeof callback !== "function")
-        throw new @TypeError("Array.prototype.map callback must be a function");
-    
-    var thisArg = arguments.length > 1 ? arguments[1] : undefined;
-    var result = [];
-    result.length = length;
-    var nextIndex = 0;
-    for (var i = 0; i < length; i++) {
-        if (!(i in array))
-            continue;
-        var mappedValue = callback.@call(thisArg, array[i], i, array);
-        @putByValDirect(result, i, mappedValue);
-    }
-    return result;
-}
-
-function some(callback /*, thisArg */) {
-    "use strict";
-    if (this === null)
-        throw new @TypeError("Array.prototype.some requires that |this| not be null");
-    
-    if (this === undefined)
-        throw new @TypeError("Array.prototype.some requires that |this| not be undefined");
-    
-    var array = @Object(this);
-    var length = @toLength(array.length);
-
-    if (typeof callback !== "function")
-        throw new @TypeError("Array.prototype.some callback must be a function");
-    
-    var thisArg = arguments.length > 1 ? arguments[1] : undefined;
-    for (var i = 0; i < length; i++) {
-        if (!(i in array))
-            continue;
-        if (callback.@call(thisArg, array[i], i, array))
-            return true;
-    }
-    return false;
-}
-
-function fill(value /* [, start [, end]] */)
-{
-    "use strict";
-    if (this === null)
-        throw new @TypeError("Array.prototype.fill requires that |this| not be null");
-    
-    if (this === undefined)
-        throw new @TypeError("Array.prototype.fill requires that |this| not be undefined");
-    var O = @Object(this);
-    var len = @toLength(O.length);
-    var relativeStart = 0;
-    if (arguments.length > 1 && arguments[1] !== undefined)
-        relativeStart = arguments[1] | 0;
-    var k = 0;
-    if (relativeStart < 0) {
-        k = len + relativeStart;
-        if (k < 0)
-            k = 0;
-    } else {
-        k = relativeStart;
-        if (k > len)
-            k = len;
-    }
-    var relativeEnd = len;
-    if (arguments.length > 2 && arguments[2] !== undefined)
-        relativeEnd = arguments[2] | 0;
-    var final = 0;
-    if (relativeEnd < 0) {
-        final = len + relativeEnd;
-        if (final < 0)
-            final = 0;
-    } else {
-        final = relativeEnd;
-        if (final > len)
-            final = len;
-    }
-    for (; k < final; k++)
-        O[k] = value;
-    return O;
-}
-
-function find(callback /*, thisArg */) {
-    "use strict";
-    if (this === null)
-        throw new @TypeError("Array.prototype.find requires that |this| not be null");
-    
-    if (this === undefined)
-        throw new @TypeError("Array.prototype.find requires that |this| not be undefined");
-    
-    var array = @Object(this);
-    var length = @toLength(array.length);
-
-    if (typeof callback !== "function")
-        throw new @TypeError("Array.prototype.find callback must be a function");
-    
-    var thisArg = arguments.length > 1 ? arguments[1] : undefined;
-    for (var i = 0; i < length; i++) {
-        var kValue = array[i];
-        if (callback.@call(thisArg, kValue, i, array))
-            return kValue;
-    }
-    return undefined;
-}
-
-function findIndex(callback /*, thisArg */) {
-    "use strict";
-    if (this === null)
-        throw new @TypeError("Array.prototype.findIndex requires that |this| not be null");
-    
-    if (this === undefined)
-        throw new @TypeError("Array.prototype.findIndex requires that |this| not be undefined");
-    
-    var array = @Object(this);
-    var length = @toLength(array.length);
-
-    if (typeof callback !== "function")
-        throw new @TypeError("Array.prototype.findIndex callback must be a function");
-    
-    var thisArg = arguments.length > 1 ? arguments[1] : undefined;
-    for (var i = 0; i < length; i++) {
-        if (callback.@call(thisArg, array[i], i, array))
-            return i;
-    }
-    return -1;
-}
-
-function includes(searchElement /*, fromIndex*/) {
-    "use strict";
-    if (this === null)
-        throw new @TypeError("Array.prototype.includes requires that |this| not be null");
-
-    if (this === undefined)
-        throw new @TypeError("Array.prototype.includes requires that |this| not be undefined");
-
-    var array = @Object(this);
-    var length = @toLength(array.length);
-
-    if (length === 0)
-        return false;
-
-    var fromIndex = 0;
-    if (arguments.length > 1 && arguments[1] !== undefined)
-        fromIndex = arguments[1] | 0;
-
-    var index;
-    if (fromIndex >= 0)
-        index = fromIndex;
-    else
-        index = length + fromIndex;
-
-    if (index < 0)
-        index = 0;
-
-    var currentElement;
-    for (; index < length; ++index) {
-        currentElement = array[index];
-        // Use SameValueZero comparison, rather than just StrictEquals.
-        if (searchElement === currentElement || (searchElement !== searchElement && currentElement !== currentElement))
-            return true;
-    }
-    return false;
-}
-
-function sort(comparator)
-{
-    "use strict";
-
-    function min(a, b)
-    {
-        return a < b ? a : b;
-    }
-
-    function stringComparator(a, b)
-    {
-        var aString = a.string;
-        var bString = b.string;
-
-        var aLength = aString.length;
-        var bLength = bString.length;
-        var length = min(aLength, bLength);
-
-        for (var i = 0; i < length; ++i) {
-            var aCharCode = aString.@charCodeAt(i);
-            var bCharCode = bString.@charCodeAt(i);
-
-            if (aCharCode == bCharCode)
-                continue;
-
-            return aCharCode - bCharCode;
-        }
-
-        return aLength - bLength;
-    }
-
-    // Move undefineds and holes to the end of a sparse array. Result is [values..., undefineds..., holes...].
-    function compactSparse(array, dst, src, length)
-    {
-        var values = [ ];
-        var seen = { };
-        var valueCount = 0;
-        var undefinedCount = 0;
-
-        // Clean up after the in-progress non-sparse compaction that failed.
-        for (var i = dst; i < src; ++i)
-            delete array[i];
-
-        for (var object = array; object; object = @Object.@getPrototypeOf(object)) {
-            var propertyNames = @Object.@getOwnPropertyNames(object);
-            for (var i = 0; i < propertyNames.length; ++i) {
-                var index = propertyNames[i];
-                if (index < length) { // Exclude non-numeric properties and properties past length.
-                    if (seen[index]) // Exclude duplicates.
-                        continue;
-                    seen[index] = 1;
-
-                    var value = array[index];
-                    delete array[index];
-
-                    if (value === undefined) {
-                        ++undefinedCount;
-                        continue;
-                    }
-
-                    array[valueCount++] = value;
-                }
-            }
-        }
-
-        for (var i = valueCount; i < valueCount + undefinedCount; ++i)
-            array[i] = undefined;
-
-        return valueCount;
-    }
-
-    function compactSlow(array, length)
-    {
-        var holeCount = 0;
-
-        for (var dst = 0, src = 0; src < length; ++src) {
-            if (!(src in array)) {
-                ++holeCount;
-                if (holeCount < 256)
-                    continue;
-                return compactSparse(array, dst, src, length);
-            }
-
-            var value = array[src];
-            if (value === undefined)
-                continue;
-
-            array[dst++] = value;
-        }
-
-        var valueCount = dst;
-        var undefinedCount = length - valueCount - holeCount;
-
-        for (var i = valueCount; i < valueCount + undefinedCount; ++i)
-            array[i] = undefined;
-
-        for (var i = valueCount + undefinedCount; i < length; ++i)
-            delete array[i];
-
-        return valueCount;
-    }
-
-    // Move undefineds and holes to the end of an array. Result is [values..., undefineds..., holes...].
-    function compact(array, length)
-    {
-        for (var i = 0; i < array.length; ++i) {
-            if (array[i] === undefined)
-                return compactSlow(array, length);
-        }
-
-        return length;
-    }
-
-    function merge(dst, src, srcIndex, srcEnd, width, comparator)
-    {
-        var left = srcIndex;
-        var leftEnd = min(left + width, srcEnd);
-        var right = leftEnd;
-        var rightEnd = min(right + width, srcEnd);
-
-        for (var dstIndex = left; dstIndex < rightEnd; ++dstIndex) {
-            if (right < rightEnd) {
-                if (left >= leftEnd || comparator(src[right], src[left]) < 0) {
-                    dst[dstIndex] = src[right++];
-                    continue;
-                }
-            }
-
-            dst[dstIndex] = src[left++];
-        }
-    }
-
-    function mergeSort(array, valueCount, comparator)
-    {
-        var buffer = [ ];
-        buffer.length = valueCount;
-
-        var dst = buffer;
-        var src = array;
-        for (var width = 1; width < valueCount; width *= 2) {
-            for (var srcIndex = 0; srcIndex < valueCount; srcIndex += 2 * width)
-                merge(dst, src, srcIndex, valueCount, width, comparator);
-
-            var tmp = src;
-            src = dst;
-            dst = tmp;
-        }
-
-        if (src != array) {
-            for(var i = 0; i < valueCount; i++)
-                array[i] = src[i];
-        }
-    }
-
-    function bucketSort(array, dst, bucket, depth)
-    {
-        if (bucket.length < 32 || depth > 32) {
-            mergeSort(bucket, bucket.length, stringComparator);
-            for (var i = 0; i < bucket.length; ++i)
-                array[dst++] = bucket[i].value;
-            return dst;
-        }
-
-        var buckets = [ ];
-        for (var i = 0; i < bucket.length; ++i) {
-            var entry = bucket[i];
-            var string = entry.string;
-            if (string.length == depth) {
-                array[dst++] = entry.value;
-                continue;
-            }
-
-            var c = string.@charCodeAt(depth);
-            if (!buckets[c])
-                buckets[c] = [ ];
-            buckets[c][buckets[c].length] = entry;
-        }
-
-        for (var i = 0; i < buckets.length; ++i) {
-            if (!buckets[i])
-                continue;
-            dst = bucketSort(array, dst, buckets[i], depth + 1);
-        }
-
-        return dst;
-    }
-
-    function comparatorSort(array, comparator)
-    {
-        var length = array.length >>> 0;
-
-        // For compatibility with Firefox and Chrome, do nothing observable
-        // to the target array if it has 0 or 1 sortable properties.
-        if (length < 2)
-            return;
-
-        var valueCount = compact(array, length);
-        mergeSort(array, valueCount, comparator);
-    }
-
-    function stringSort(array)
-    {
-        var length = array.length >>> 0;
-
-        // For compatibility with Firefox and Chrome, do nothing observable
-        // to the target array if it has 0 or 1 sortable properties.
-        if (length < 2)
-            return;
-
-        var valueCount = compact(array, length);
-
-        var strings = new @Array(valueCount);
-        for (var i = 0; i < valueCount; ++i)
-            strings[i] = { string: @toString(array[i]), value: array[i] };
-
-        bucketSort(array, 0, strings, 0);
-    }
-
-    if (this === null)
-        throw new @TypeError("Array.prototype.sort requires that |this| not be null");
-
-    if (this === undefined)
-        throw new @TypeError("Array.prototype.sort requires that |this| not be undefined");
-
-    if (typeof this == "string")
-        throw new @TypeError("Attempted to assign to readonly property.");
-
-    var array = @Object(this);
-
-    if (typeof comparator == "function")
-        comparatorSort(array, comparator);
-    else
-        stringSort(array);
-
-    return array;
-}
-
-function copyWithin(target, start /*, end */)
-{
-    "use strict";
-
-    function maxWithPositives(a, b)
-    {
-        return (a < b) ? b : a;
-    }
-
-    function minWithMaybeNegativeZeroAndPositive(maybeNegativeZero, positive)
-    {
-        return (maybeNegativeZero < positive) ? maybeNegativeZero : positive;
-    }
-
-    if (this === null || this === undefined)
-        throw new @TypeError("Array.copyWithin requires that |this| not be null or undefined");
-    var thisObject = @Object(this);
-
-    var length = @toLength(thisObject.length);
-
-    var relativeTarget = @toInteger(target);
-    var to = (relativeTarget < 0) ? maxWithPositives(length + relativeTarget, 0) : minWithMaybeNegativeZeroAndPositive(relativeTarget, length);
-
-    var relativeStart = @toInteger(start);
-    var from = (relativeStart < 0) ? maxWithPositives(length + relativeStart, 0) : minWithMaybeNegativeZeroAndPositive(relativeStart, length);
-
-    var relativeEnd;
-    if (arguments.length >= 3) {
-        var end = arguments[2];
-        if (end === undefined)
-            relativeEnd = length;
-        else
-            relativeEnd = @toInteger(end);
-    } else
-        relativeEnd = length;
-
-    var finalValue = (relativeEnd < 0) ? maxWithPositives(length + relativeEnd, 0) : minWithMaybeNegativeZeroAndPositive(relativeEnd, length);
-
-    var count = minWithMaybeNegativeZeroAndPositive(finalValue - from, length - to);
-
-    var direction = 1;
-    if (from < to && to < from + count) {
-        direction = -1;
-        from = from + count - 1;
-        to = to + count - 1;
-    }
-
-    for (var i = 0; i < count; ++i, from += direction, to += direction) {
-        if (from in thisObject)
-            thisObject[to] = thisObject[from];
-        else
-            delete thisObject[to];
-    }
-
-    return thisObject;
-}
diff --git a/Source/JavaScriptCore/builtins/ArrayConstructor.js b/Source/JavaScriptCore/builtins/ArrayConstructor.js
deleted file mode 100644
index 5a551f739..000000000
--- a/Source/JavaScriptCore/builtins/ArrayConstructor.js
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * Copyright (C) 2015 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-function of(/* items... */)
-{
-    "use strict";
-
-    var length = arguments.length;
-    // TODO: Need isConstructor(this) instead of typeof "function" check.
-    var array = typeof this === 'function' ? new this(length) : new @Array(length);
-    for (var k = 0; k < length; ++k)
-        @putByValDirect(array, k, arguments[k]);
-    array.length = length;
-    return array;
-}
-
-function from(items /*, mapFn, thisArg */) {
-    "use strict";
-
-    var thisObj = this;
-
-    var mapFn = arguments.length > 1 ? arguments[1] : undefined;
-
-    var thisArg;
-
-    if (mapFn !== undefined) {
-        if (typeof mapFn !== "function")
-            throw new @TypeError("Array.from requires that the second argument, when provided, be a function");
-
-        if (arguments.length > 2)
-            thisArg = arguments[2];
-    }
-
-    if (items == null)
-        throw new @TypeError("Array.from requires an array-like object - not null or undefined");
-
-    var iteratorMethod = items[@symbolIterator];
-    if (iteratorMethod != null) {
-        if (typeof iteratorMethod !== "function")
-            throw new @TypeError("Array.from requires that the property of the first argument, items[Symbol.iterator], when exists, be a function");
-
-        // TODO: Need isConstructor(thisObj) instead of typeof "function" check.
-        var result = (typeof thisObj === "function") ? @Object(new thisObj()) : [];
-
-        var k = 0;
-        var iterator = iteratorMethod.@call(items);
-
-        // Since for-of loop once more looks up the @@iterator property of a given iterable,
-        // it could be observable if the user defines a getter for @@iterator.
-        // To avoid this situation, we define a wrapper object that @@iterator just returns a given iterator.
-        var wrapper = {
-            [@symbolIterator]() {
-                return iterator;
-            }
-        };
-
-        for (var value of wrapper) {
-            if (mapFn)
-                @putByValDirect(result, k, thisArg === undefined ? mapFn(value, k) : mapFn.@call(thisArg, value, k));
-            else
-                @putByValDirect(result, k, value);
-            k += 1;
-        }
-
-        result.length = k;
-        return result;
-    }
-
-    var arrayLike = @Object(items);
-    var arrayLikeLength = @toLength(arrayLike.length);
-
-    // TODO: Need isConstructor(thisObj) instead of typeof "function" check.
-    var result = (typeof thisObj === "function") ? @Object(new thisObj(arrayLikeLength)) : new @Array(arrayLikeLength);
-
-    var k = 0;
-    while (k < arrayLikeLength) {
-        var value = arrayLike[k];
-        if (mapFn)
-            @putByValDirect(result, k, thisArg === undefined ? mapFn(value, k) : mapFn.@call(thisArg, value, k));
-        else
-            @putByValDirect(result, k, value);
-        k += 1;
-    }
-
-    result.length = arrayLikeLength;
-    return result;
-}
diff --git a/Source/JavaScriptCore/builtins/ArrayIterator.prototype.js b/Source/JavaScriptCore/builtins/ArrayIterator.prototype.js
deleted file mode 100644
index 82df528c9..000000000
--- a/Source/JavaScriptCore/builtins/ArrayIterator.prototype.js
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-function next() {
-    "use strict";
-
-    if (this == null)
-        throw new @TypeError("%ArrayIteratorPrototype%.next requires that |this| not be null or undefined");
-
-    var itemKind = this.@arrayIterationKind;
-    if (itemKind === undefined)
-        throw new @TypeError("%ArrayIteratorPrototype%.next requires that |this| be an Array Iterator instance");
-
-    var done = true;
-    var value = undefined;
-
-    var array = this.@iteratedObject;
-    if (array !== undefined) {
-        var index = this.@arrayIteratorNextIndex;
-        var length = array.length >>> 0;
-        if (index >= length) {
-            this.@iteratedObject = undefined;
-        } else {
-            this.@arrayIteratorNextIndex = index + 1;
-            done = false;
-            if (itemKind === @arrayIterationKindKey) {
-                value = index;
-            } else if (itemKind === @arrayIterationKindValue) {
-                value = array[index];
-            } else {
-                value = [ index, array[index] ];
-            }
-        }
-    }
-
-    return {done, value};
-}
diff --git a/Source/JavaScriptCore/builtins/BuiltinExecutables.cpp b/Source/JavaScriptCore/builtins/BuiltinExecutables.cpp
deleted file mode 100644
index 9370e7e1f..000000000
--- a/Source/JavaScriptCore/builtins/BuiltinExecutables.cpp
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * Copyright (C) 2014 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-
-#include "config.h"
-#include "BuiltinExecutables.h"
-
-#include "BuiltinNames.h"
-#include "Executable.h"
-#include "JSCInlines.h"
-#include "Parser.h"
-#include <wtf/NeverDestroyed.h>
-
-namespace JSC {
-
-BuiltinExecutables::BuiltinExecutables(VM& vm)
-    : m_vm(vm)
-#define INITIALIZE_BUILTIN_SOURCE_MEMBERS(name, functionName, length) , m_##name##Source(makeSource(StringImpl::createFromLiteral(s_##name, length)))
-    JSC_FOREACH_BUILTIN(INITIALIZE_BUILTIN_SOURCE_MEMBERS)
-#undef EXPOSE_BUILTIN_STRINGS
-{
-}
-
-UnlinkedFunctionExecutable* BuiltinExecutables::createDefaultConstructor(ConstructorKind constructorKind, const Identifier& name)
-{
-    static NeverDestroyed<const String> baseConstructorCode(ASCIILiteral("(function () { })"));
-    static NeverDestroyed<const String> derivedConstructorCode(ASCIILiteral("(function () { super(...arguments); })"));
-
-    switch (constructorKind) {
-    case ConstructorKind::None:
-        break;
-    case ConstructorKind::Base:
-        return createExecutableInternal(makeSource(baseConstructorCode), name, constructorKind, ConstructAbility::CanConstruct);
-    case ConstructorKind::Derived:
-        return createExecutableInternal(makeSource(derivedConstructorCode), name, constructorKind, ConstructAbility::CanConstruct);
-    }
-    ASSERT_NOT_REACHED();
-    return nullptr;
-}
-
-UnlinkedFunctionExecutable* BuiltinExecutables::createExecutableInternal(const SourceCode& source, const Identifier& name, ConstructorKind constructorKind, ConstructAbility constructAbility)
-{
-    JSTextPosition positionBeforeLastNewline;
-    ParserError error;
-    bool isParsingDefaultConstructor = constructorKind != ConstructorKind::None;
-    JSParserBuiltinMode builtinMode = isParsingDefaultConstructor ? JSParserBuiltinMode::NotBuiltin : JSParserBuiltinMode::Builtin;
-    UnlinkedFunctionKind kind = isParsingDefaultConstructor ? UnlinkedNormalFunction : UnlinkedBuiltinFunction;
-    RefPtr<SourceProvider> sourceOverride = isParsingDefaultConstructor ? source.provider() : nullptr;
-    std::unique_ptr<ProgramNode> program = parse<ProgramNode>(
-        &m_vm, source, Identifier(), builtinMode,
-        JSParserStrictMode::NotStrict, SourceParseMode::ProgramMode, error,
-        &positionBeforeLastNewline, constructorKind);
-
-    if (!program) {
-        dataLog("Fatal error compiling builtin function '", name.string(), "': ", error.message());
-        CRASH();
-    }
-
-    StatementNode* exprStatement = program->singleStatement();
-    RELEASE_ASSERT(exprStatement);
-    RELEASE_ASSERT(exprStatement->isExprStatement());
-    ExpressionNode* funcExpr = static_cast<ExprStatementNode*>(exprStatement)->expr();
-    RELEASE_ASSERT(funcExpr);
-    RELEASE_ASSERT(funcExpr->isFuncExprNode());
-    FunctionMetadataNode* metadata = static_cast<FuncExprNode*>(funcExpr)->metadata();
-    RELEASE_ASSERT(!program->hasCapturedVariables());
-    
-    metadata->setEndPosition(positionBeforeLastNewline);
-    RELEASE_ASSERT(metadata);
-    RELEASE_ASSERT(metadata->ident().isNull());
-    
-    // This function assumes an input string that would result in a single anonymous function expression.
-    metadata->setEndPosition(positionBeforeLastNewline);
-    RELEASE_ASSERT(metadata);
-    for (const auto& closedVariable : program->closedVariables()) {
-        if (closedVariable == m_vm.propertyNames->arguments.impl())
-            continue;
-        
-        if (closedVariable == m_vm.propertyNames->undefinedKeyword.impl())
-            continue;
-    }
-    metadata->overrideName(name);
-    VariableEnvironment dummyTDZVariables;
-    UnlinkedFunctionExecutable* functionExecutable = UnlinkedFunctionExecutable::create(&m_vm, source, metadata, kind, constructAbility, dummyTDZVariables, WTF::move(sourceOverride));
-    functionExecutable->m_nameValue.set(m_vm, functionExecutable, jsString(&m_vm, name.string()));
-    return functionExecutable;
-}
-
-void BuiltinExecutables::finalize(Handle<Unknown>, void* context)
-{
-    static_cast<Weak<UnlinkedFunctionExecutable>*>(context)->clear();
-}
-
-#define DEFINE_BUILTIN_EXECUTABLES(name, functionName, length) \
-UnlinkedFunctionExecutable* BuiltinExecutables::name##Executable() \
-{\
-    if (!m_##name##Executable)\
-        m_##name##Executable = Weak<UnlinkedFunctionExecutable>(createBuiltinExecutable(m_##name##Source, m_vm.propertyNames->builtinNames().functionName##PublicName(), s_##name##ConstructAbility), this, &m_##name##Executable);\
-    return m_##name##Executable.get();\
-}
-JSC_FOREACH_BUILTIN(DEFINE_BUILTIN_EXECUTABLES)
-#undef EXPOSE_BUILTIN_SOURCES
-
-}
diff --git a/Source/JavaScriptCore/builtins/BuiltinExecutables.h b/Source/JavaScriptCore/builtins/BuiltinExecutables.h
deleted file mode 100644
index 4e432225f..000000000
--- a/Source/JavaScriptCore/builtins/BuiltinExecutables.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright (C) 2014 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef BuiltinExecutables_h
-#define BuiltinExecutables_h
-
-#include "JSCBuiltins.h"
-#include "ParserModes.h"
-#include "SourceCode.h"
-#include "Weak.h"
-#include "WeakHandleOwner.h"
-
-namespace JSC {
-
-class UnlinkedFunctionExecutable;
-class Identifier;
-class VM;
-
-class BuiltinExecutables final: private WeakHandleOwner {
-    WTF_MAKE_FAST_ALLOCATED;
-public:
-    explicit BuiltinExecutables(VM&);
-
-#define EXPOSE_BUILTIN_EXECUTABLES(name, functionName, length) \
-UnlinkedFunctionExecutable* name##Executable(); \
-const SourceCode& name##Source() { return m_##name##Source; }
-    
-    JSC_FOREACH_BUILTIN(EXPOSE_BUILTIN_EXECUTABLES)
-#undef EXPOSE_BUILTIN_SOURCES
-
-    UnlinkedFunctionExecutable* createDefaultConstructor(ConstructorKind, const Identifier& name);
-
-private:
-    void finalize(Handle<Unknown>, void* context) override;
-
-    VM& m_vm;
-
-    UnlinkedFunctionExecutable* createBuiltinExecutable(const SourceCode& code, const Identifier& name, ConstructAbility constructAbility)
-    {
-        return createExecutableInternal(code, name, ConstructorKind::None, constructAbility);
-    }
-    UnlinkedFunctionExecutable* createExecutableInternal(const SourceCode&, const Identifier&, ConstructorKind, ConstructAbility);
-
-#define DECLARE_BUILTIN_SOURCE_MEMBERS(name, functionName, length)\
-    SourceCode m_##name##Source; \
-    Weak<UnlinkedFunctionExecutable> m_##name##Executable;
-    JSC_FOREACH_BUILTIN(DECLARE_BUILTIN_SOURCE_MEMBERS)
-#undef DECLARE_BUILTIN_SOURCE_MEMBERS
-};
-
-}
-
-#endif
diff --git a/Source/JavaScriptCore/builtins/BuiltinNames.h b/Source/JavaScriptCore/builtins/BuiltinNames.h
deleted file mode 100644
index ce044479f..000000000
--- a/Source/JavaScriptCore/builtins/BuiltinNames.h
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Copyright (C) 2014 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef BuiltinNames_h
-#define BuiltinNames_h
-
-#include "CommonIdentifiers.h"
-#include "JSCBuiltins.h"
-
-namespace JSC {
-    
-#define INITIALISE_BUILTIN_NAMES(name) , m_##name(Identifier::fromString(vm, #name)), m_##name##PrivateName(Identifier::fromUid(PrivateName(PrivateName::Description, ASCIILiteral("PrivateSymbol." #name))))
-#define DECLARE_BUILTIN_NAMES(name) const Identifier m_##name; const Identifier m_##name##PrivateName;
-#define DECLARE_BUILTIN_IDENTIFIER_ACCESSOR(name) \
-    const Identifier& name##PublicName() const { return m_##name; } \
-    const Identifier& name##PrivateName() const { return m_##name##PrivateName; }
-
-#define INITIALISE_BUILTIN_SYMBOLS(name) INITIALISE_BUILTIN_NAMES(name), m_##name##Symbol(Identifier::fromUid(PrivateName(PrivateName::Description, ASCIILiteral("Symbol." #name))))
-#define DECLARE_BUILTIN_SYMBOLS(name) DECLARE_BUILTIN_NAMES(name) const Identifier m_##name##Symbol;
-#define DECLARE_BUILTIN_SYMBOL_ACCESSOR(name) \
-    DECLARE_BUILTIN_IDENTIFIER_ACCESSOR(name) \
-    const Identifier& name##Symbol() const { return m_##name##Symbol; }
-
-#define INITIALISE_PRIVATE_TO_PUBLIC_ENTRY(name) m_privateToPublicMap.add(m_##name##PrivateName.impl(), &m_##name);
-#define INITIALISE_PUBLIC_TO_PRIVATE_ENTRY(name) m_publicToPrivateMap.add(m_##name.impl(), &m_##name##PrivateName);
-    
-class BuiltinNames {
-    WTF_MAKE_NONCOPYABLE(BuiltinNames); WTF_MAKE_FAST_ALLOCATED;
-    
-public:
-    BuiltinNames(VM* vm, CommonIdentifiers* commonIdentifiers)
-        : m_emptyIdentifier(commonIdentifiers->emptyIdentifier)
-        JSC_FOREACH_BUILTIN_FUNCTION_NAME(INITIALISE_BUILTIN_NAMES)
-        JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_PROPERTY_NAME(INITIALISE_BUILTIN_NAMES)
-        JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_WELL_KNOWN_SYMBOL(INITIALISE_BUILTIN_SYMBOLS)
-    {
-        JSC_FOREACH_BUILTIN_FUNCTION_NAME(INITIALISE_PRIVATE_TO_PUBLIC_ENTRY)
-        JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_PROPERTY_NAME(INITIALISE_PRIVATE_TO_PUBLIC_ENTRY)
-        JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_WELL_KNOWN_SYMBOL(INITIALISE_PRIVATE_TO_PUBLIC_ENTRY)
-        JSC_FOREACH_BUILTIN_FUNCTION_NAME(INITIALISE_PUBLIC_TO_PRIVATE_ENTRY)
-        JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_PROPERTY_NAME(INITIALISE_PUBLIC_TO_PRIVATE_ENTRY)
-        JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_WELL_KNOWN_SYMBOL(INITIALISE_PUBLIC_TO_PRIVATE_ENTRY)
-    }
-
-    bool isPrivateName(SymbolImpl& uid) const;
-    bool isPrivateName(UniquedStringImpl& uid) const;
-    bool isPrivateName(const Identifier&) const;
-    const Identifier* getPrivateName(const Identifier&) const;
-    const Identifier& getPublicName(const Identifier&) const;
-    
-    JSC_FOREACH_BUILTIN_FUNCTION_NAME(DECLARE_BUILTIN_IDENTIFIER_ACCESSOR)
-    JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_PROPERTY_NAME(DECLARE_BUILTIN_IDENTIFIER_ACCESSOR)
-    JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_WELL_KNOWN_SYMBOL(DECLARE_BUILTIN_SYMBOL_ACCESSOR)
-
-private:
-    Identifier m_emptyIdentifier;
-    JSC_FOREACH_BUILTIN_FUNCTION_NAME(DECLARE_BUILTIN_NAMES)
-    JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_PROPERTY_NAME(DECLARE_BUILTIN_NAMES)
-    JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_WELL_KNOWN_SYMBOL(DECLARE_BUILTIN_SYMBOLS)
-    typedef HashMap<RefPtr<UniquedStringImpl>, const Identifier*, IdentifierRepHash> BuiltinNamesMap;
-    BuiltinNamesMap m_publicToPrivateMap;
-    BuiltinNamesMap m_privateToPublicMap;
-};
-
-#undef DECLARE_BUILTIN_NAMES
-#undef INITIALISE_BUILTIN_NAMES
-#undef DECLARE_BUILTIN_IDENTIFIER_ACCESSOR
-#undef DECLARE_BUILTIN_SYMBOLS
-#undef INITIALISE_BUILTIN_SYMBOLS
-#undef DECLARE_BUILTIN_SYMBOL_ACCESSOR
-
-inline bool BuiltinNames::isPrivateName(SymbolImpl& uid) const
-{
-    return m_privateToPublicMap.contains(&uid);
-}
-
-inline bool BuiltinNames::isPrivateName(UniquedStringImpl& uid) const
-{
-    if (!uid.isSymbol())
-        return false;
-    return m_privateToPublicMap.contains(&uid);
-}
-
-inline bool BuiltinNames::isPrivateName(const Identifier& ident) const
-{
-    if (ident.isNull())
-        return false;
-    return isPrivateName(*ident.impl());
-}
-
-inline const Identifier* BuiltinNames::getPrivateName(const Identifier& ident) const
-{
-    auto iter = m_publicToPrivateMap.find(ident.impl());
-    if (iter != m_publicToPrivateMap.end())
-        return iter->value;
-    return 0;
-}
-
-inline const Identifier& BuiltinNames::getPublicName(const Identifier& ident) const
-{
-    auto iter = m_privateToPublicMap.find(ident.impl());
-    if (iter != m_privateToPublicMap.end())
-        return *iter->value;
-    return m_emptyIdentifier;
-}
-
-
-}
-
-#endif
diff --git a/Source/JavaScriptCore/builtins/Function.prototype.js b/Source/JavaScriptCore/builtins/Function.prototype.js
deleted file mode 100644
index 2b7540b0c..000000000
--- a/Source/JavaScriptCore/builtins/Function.prototype.js
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright (C) 2014 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-function call(thisArgument) {
-    "use strict";
-    return this.@call(...arguments);
-}
-
-function apply(thisValue, argumentValues) {
-    "use strict";
-    return this.@apply(thisValue, argumentValues);
-}
diff --git a/Source/JavaScriptCore/builtins/GlobalObject.js b/Source/JavaScriptCore/builtins/GlobalObject.js
deleted file mode 100644
index 6adadefbd..000000000
--- a/Source/JavaScriptCore/builtins/GlobalObject.js
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-function toInteger(target)
-{
-    "use strict";
-
-    var numberValue = @Number(target);
-
-    // isNaN(numberValue)
-    if (numberValue !== numberValue)
-        return 0;
-
-    if (numberValue === 0 || !@isFinite(numberValue))
-        return numberValue;
-
-    return (numberValue > 0 ? 1 : -1) * @floor(@abs(numberValue));
-}
-
-function toLength(target)
-{
-    "use strict";
-
-    var maxSafeInteger = 0x1FFFFFFFFFFFFF;
-    var length = @toInteger(target);
-    // originally Math.min(Math.max(length, 0), maxSafeInteger));
-    return length > 0 ? (length < maxSafeInteger ? length : maxSafeInteger) : 0;
-}
-
-function isObject(object)
-{
-    "use strict";
-
-    return (object !== null && typeof object === "object") || typeof object === "function";
-}
diff --git a/Source/JavaScriptCore/builtins/Iterator.prototype.js b/Source/JavaScriptCore/builtins/Iterator.prototype.js
deleted file mode 100644
index 1e9b98c84..000000000
--- a/Source/JavaScriptCore/builtins/Iterator.prototype.js
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-function symbolIterator()
-{
-    'use strict';
-    return this;
-}
diff --git a/Source/JavaScriptCore/builtins/ObjectConstructor.js b/Source/JavaScriptCore/builtins/ObjectConstructor.js
deleted file mode 100644
index 6b7ac1996..000000000
--- a/Source/JavaScriptCore/builtins/ObjectConstructor.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (C) 2015 Jordan Harband. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-function assign(target/*[*/, /*...*/sources/*] */) {
-    "use strict";
-
-    if (target == null)
-        throw new @TypeError("can't convert " + target + " to object");
-
-    var objTarget = @Object(target);
-    for (var s = 1, argumentsLength = arguments.length; s < argumentsLength; ++s) {
-        var nextSource = arguments[s];
-        if (nextSource != null) {
-            var from = @Object(nextSource);
-            var keys = @ownEnumerablePropertyKeys(from);
-            for (var i = 0, keysLength = keys.length; i < keysLength; ++i) {
-                var nextKey = keys[i];
-                objTarget[nextKey] = from[nextKey];
-            }
-        }
-    }
-    return objTarget;
-}
diff --git a/Source/JavaScriptCore/builtins/Operations.Promise.js b/Source/JavaScriptCore/builtins/Operations.Promise.js
deleted file mode 100644
index 80c57ab0b..000000000
--- a/Source/JavaScriptCore/builtins/Operations.Promise.js
+++ /dev/null
@@ -1,214 +0,0 @@
-/*
- * Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-function isPromise(promise)
-{
-    "use strict";
-
-    return @isObject(promise) && !!promise.@promiseState;
-}
-
-function newPromiseReaction(capability, handler)
-{
-    "use strict";
-
-    return {
-        @capabilities: capability,
-        @handler: handler
-    };
-}
-
-function newPromiseDeferred()
-{
-    "use strict";
-
-    return @newPromiseCapability(@Promise);
-}
-
-function newPromiseCapability(constructor)
-{
-    "use strict";
-
-    // FIXME: Check isConstructor(constructor).
-    if (typeof constructor !== "function")
-        throw new @TypeError("promise capability requires a constructor function");
-
-    var promiseCapability = {
-        @promise: undefined,
-        @resolve: undefined,
-        @reject: undefined
-    };
-
-    function executor(resolve, reject)
-    {
-        if (promiseCapability.@resolve !== undefined)
-            throw new @TypeError("resolve function is already set");
-        if (promiseCapability.@reject !== undefined)
-            throw new @TypeError("reject function is already set");
-
-        promiseCapability.@resolve = resolve;
-        promiseCapability.@reject = reject;
-    }
-
-    var promise = new constructor(executor);
-
-    if (typeof promiseCapability.@resolve !== "function")
-        throw new @TypeError("executor did not take a resolve function");
-
-    if (typeof promiseCapability.@reject !== "function")
-        throw new @TypeError("executor did not take a reject function");
-
-    promiseCapability.@promise = promise;
-
-    return promiseCapability;
-}
-
-function triggerPromiseReactions(reactions, argument)
-{
-    "use strict";
-
-    for (var index = 0, length = reactions.length; index < length; ++index)
-        @enqueueJob(@promiseReactionJob, [reactions[index], argument]);
-}
-
-function rejectPromise(promise, reason)
-{
-    "use strict";
-
-    var reactions = promise.@promiseRejectReactions;
-    promise.@promiseResult = reason;
-    promise.@promiseFulfillReactions = undefined;
-    promise.@promiseRejectReactions = undefined;
-    promise.@promiseState = @promiseRejected;
-    @triggerPromiseReactions(reactions, reason);
-}
-
-function fulfillPromise(promise, value)
-{
-    "use strict";
-
-    var reactions = promise.@promiseFulfillReactions;
-    promise.@promiseResult = value;
-    promise.@promiseFulfillReactions = undefined;
-    promise.@promiseRejectReactions = undefined;
-    promise.@promiseState = @promiseFulfilled;
-    @triggerPromiseReactions(reactions, value);
-}
-
-function createResolvingFunctions(promise)
-{
-    "use strict";
-
-    var alreadyResolved = false;
-
-    var resolve = function (resolution) {
-        if (alreadyResolved)
-            return undefined;
-        alreadyResolved = true;
-
-        if (resolution === promise)
-            return @rejectPromise(promise, new @TypeError("Resolve a promise with itself"));
-
-        if (!@isObject(resolution))
-            return @fulfillPromise(promise, resolution);
-
-        var then;
-        try {
-            then = resolution.then;
-        } catch (error) {
-            return @rejectPromise(promise, error);
-        }
-
-        if (typeof then !== 'function')
-            return @fulfillPromise(promise, resolution);
-
-        @enqueueJob(@promiseResolveThenableJob, [promise, resolution, then]);
-
-        return undefined;
-    };
-
-    var reject = function (reason) {
-        if (alreadyResolved)
-            return undefined;
-        alreadyResolved = true;
-
-        return @rejectPromise(promise, reason);
-    };
-
-    return {
-        @resolve: resolve,
-        @reject: reject
-    };
-}
-
-function promiseReactionJob(reaction, argument)
-{
-    "use strict";
-
-    var promiseCapability = reaction.@capabilities;
-
-    var result;
-    try {
-        result = reaction.@handler.@call(undefined, argument);
-    } catch (error) {
-        return promiseCapability.@reject.@call(undefined, error);
-    }
-
-    return promiseCapability.@resolve.@call(undefined, result);
-}
-
-function promiseResolveThenableJob(promiseToResolve, thenable, then)
-{
-    "use strict";
-
-    var resolvingFunctions = @createResolvingFunctions(promiseToResolve);
-
-    try {
-        return then.@call(thenable, resolvingFunctions.@resolve, resolvingFunctions.@reject);
-    } catch (error) {
-        return resolvingFunctions.@reject.@call(undefined, error);
-    }
-}
-
-function initializePromise(executor)
-{
-    "use strict";
-
-    if (typeof executor !== 'function')
-        throw new @TypeError("Promise constructor takes a function argument");
-
-    this.@promiseState = @promisePending;
-    this.@promiseFulfillReactions = [];
-    this.@promiseRejectReactions = [];
-
-    var resolvingFunctions = @createResolvingFunctions(this);
-    try {
-        executor(resolvingFunctions.@resolve, resolvingFunctions.@reject);
-    } catch (error) {
-        return resolvingFunctions.@reject.@call(undefined, error);
-    }
-
-    return this;
-}
diff --git a/Source/JavaScriptCore/builtins/Promise.prototype.js b/Source/JavaScriptCore/builtins/Promise.prototype.js
deleted file mode 100644
index 8563df0d9..000000000
--- a/Source/JavaScriptCore/builtins/Promise.prototype.js
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Copyright (C) 2014 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-function catch(onRejected)
-{
-    "use strict";
-
-    return this.then(undefined, onRejected);
-}
-
-function then(onFulfilled, onRejected)
-{
-    "use strict";
-
-    if (!@isPromise(this))
-        throw new @TypeError("|this| is not a object");
-
-    // FIXME: Fix this code when @@species well-known symbol is landed.
-    // https://bugs.webkit.org/show_bug.cgi?id=146624
-    var constructor = this.constructor;
-
-    var resultCapability = @newPromiseCapability(constructor);
-
-    if (typeof onFulfilled !== "function")
-        onFulfilled = function (argument) { return argument; };
-
-    if (typeof onRejected !== "function")
-        onRejected = function (argument) { throw argument; };
-
-    var fulfillReaction = @newPromiseReaction(resultCapability, onFulfilled);
-    var rejectReaction = @newPromiseReaction(resultCapability, onRejected);
-
-    var state = this.@promiseState;
-
-    if (state === @promisePending) {
-        @putByValDirect(this.@promiseFulfillReactions, this.@promiseFulfillReactions.length, fulfillReaction)
-        @putByValDirect(this.@promiseRejectReactions, this.@promiseRejectReactions.length, rejectReaction)
-    } else if (state === @promiseFulfilled)
-        @enqueueJob(@promiseReactionJob, [fulfillReaction, this.@promiseResult]);
-    else if (state === @promiseRejected)
-        @enqueueJob(@promiseReactionJob, [rejectReaction, this.@promiseResult]);
-
-    return resultCapability.@promise;
-}
diff --git a/Source/JavaScriptCore/builtins/PromiseConstructor.js b/Source/JavaScriptCore/builtins/PromiseConstructor.js
deleted file mode 100644
index 1f83b47f7..000000000
--- a/Source/JavaScriptCore/builtins/PromiseConstructor.js
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-function all(iterable)
-{
-    "use strict";
-
-    if (!@isObject(this))
-        throw new TypeError("|this| is not a object");
-
-    // FIXME: Fix this code when @@species well-known symbol is landed.
-    // https://bugs.webkit.org/show_bug.cgi?id=146624
-    var constructor = this;
-
-    var promiseCapability = @newPromiseCapability(constructor);
-
-    var values = [];
-    var index = 0;
-    var remainingElementsCount = 1;
-
-    function newResolveElement(index)
-    {
-        var alreadyCalled = false;
-        return function (argument)
-        {
-            if (alreadyCalled)
-                return undefined;
-            alreadyCalled = true;
-
-            @putByValDirect(values, index, argument);
-
-            --remainingElementsCount;
-            if (remainingElementsCount === 0)
-                return promiseCapability.@resolve.@call(undefined, values);
-
-            return undefined;
-        }
-    }
-
-    try {
-        for (var value of iterable) {
-            @putByValDirect(values, index, undefined);
-            var nextPromise = constructor.resolve(value);
-            var resolveElement = newResolveElement(index);
-            ++remainingElementsCount;
-            nextPromise.then(resolveElement, promiseCapability.@reject);
-            ++index;
-        }
-
-        --remainingElementsCount;
-        if (remainingElementsCount === 0)
-            promiseCapability.@resolve.@call(undefined, values);
-    } catch (error) {
-        promiseCapability.@reject.@call(undefined, error);
-    }
-
-    return promiseCapability.@promise;
-}
-
-function race(iterable)
-{
-    "use strict";
-
-    if (!@isObject(this))
-        throw new TypeError("|this| is not a object");
-
-    // FIXME: Fix this code when @@species well-known symbol is landed.
-    // https://bugs.webkit.org/show_bug.cgi?id=146624
-    var constructor = this;
-
-    var promiseCapability = @newPromiseCapability(constructor);
-
-    try {
-        for (var value of iterable) {
-            var nextPromise = constructor.resolve(value);
-            nextPromise.then(promiseCapability.@resolve, promiseCapability.@reject);
-        }
-    } catch (error) {
-        promiseCapability.@reject.@call(undefined, error);
-    }
-
-    return promiseCapability.@promise;
-}
-
-function reject(reason)
-{
-    "use strict";
-
-    if (!@isObject(this))
-        throw new TypeError("|this| is not a object");
-
-    var promiseCapability = @newPromiseCapability(this);
-
-    promiseCapability.@reject.@call(undefined, reason);
-
-    return promiseCapability.@promise;
-}
-
-function resolve(value)
-{
-    "use strict";
-
-    if (!@isObject(this))
-        throw new TypeError("|this| is not a object");
-
-    if (@isPromise(value)) {
-        var valueConstructor = value.constructor;
-        if (valueConstructor === this)
-            return value;
-    }
-
-    var promiseCapability = @newPromiseCapability(this);
-
-    promiseCapability.@resolve.@call(undefined, value);
-
-    return promiseCapability.@promise;
-}
diff --git a/Source/JavaScriptCore/builtins/ReflectObject.js b/Source/JavaScriptCore/builtins/ReflectObject.js
deleted file mode 100644
index 69c982850..000000000
--- a/Source/JavaScriptCore/builtins/ReflectObject.js
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright (C) 2015 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-// http://www.ecma-international.org/ecma-262/6.0/#sec-reflect.apply
-function apply(target, thisArgument, argumentsList)
-{
-    "use strict";
-
-    if (typeof target !== "function")
-        throw new @TypeError("Reflect.apply requires the first argument be a function");
-
-    if (!@isObject(argumentsList))
-        throw new @TypeError("Reflect.apply requires the third argument be an object");
-
-    return target.@apply(thisArgument, argumentsList);
-}
-
-// http://www.ecma-international.org/ecma-262/6.0/#sec-reflect.deleteproperty
-function deleteProperty(target, propertyKey)
-{
-    // Intentionally keep the code the sloppy mode to suppress the TypeError
-    // raised by the delete operator under the strict mode.
-
-    if (!@isObject(target))
-        throw new @TypeError("Reflect.deleteProperty requires the first argument be an object");
-
-    return delete target[propertyKey];
-}
-
-// http://www.ecma-international.org/ecma-262/6.0/#sec-reflect.has
-function has(target, propertyKey)
-{
-    "use strict";
-
-    if (!@isObject(target))
-        throw new @TypeError("Reflect.has requires the first argument be an object");
-
-    return propertyKey in target;
-}
diff --git a/Source/JavaScriptCore/builtins/StringConstructor.js b/Source/JavaScriptCore/builtins/StringConstructor.js
deleted file mode 100644
index f8cd16b12..000000000
--- a/Source/JavaScriptCore/builtins/StringConstructor.js
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-function raw(template) {
-    "use strict";
-
-    if (template === null || template === undefined)
-        throw new @TypeError("String.raw requires template not be null or undefined");
-    var cookedSegments = @Object(template);
-
-    var rawValue = cookedSegments.raw;
-    if (rawValue === null || rawValue === undefined)
-        throw new @TypeError("String.raw requires template.raw not be null or undefined");
-    var rawSegments = @Object(rawValue);
-
-    var numberOfSubstitutions = arguments.length - 1;
-
-    var segmentCount = @toLength(rawSegments.length);
-
-    if (segmentCount <= 0)
-        return '';
-
-    var stringElements = '';
-    for (var i = 0; ; ++i) {
-        var segment = @toString(rawSegments[i]);
-        stringElements += segment;
-
-        if ((i + 1) === segmentCount)
-            return stringElements;
-
-        if (i < numberOfSubstitutions) {
-            var substitutionIndexInArguments = i + 1;
-            var next = @toString(arguments[substitutionIndexInArguments]);
-            stringElements += next;
-        }
-    }
-}
diff --git a/Source/JavaScriptCore/builtins/StringIterator.prototype.js b/Source/JavaScriptCore/builtins/StringIterator.prototype.js
deleted file mode 100644
index 8810c7dc1..000000000
--- a/Source/JavaScriptCore/builtins/StringIterator.prototype.js
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-function next() {
-    "use strict";
-
-    if (this == null)
-        throw new @TypeError("%StringIteratorPrototype%.next requires that |this| not be null or undefined");
-
-    var position = this.@stringIteratorNextIndex;
-    if (position === undefined)
-        throw new @TypeError("%StringIteratorPrototype%.next requires that |this| be a String Iterator instance");
-
-    var done = true;
-    var value = undefined;
-
-    var string = this.@iteratedString;
-    if (string !== undefined) {
-        var length = string.length >>> 0;
-        if (position >= length) {
-            this.@iteratedString = undefined;
-        } else {
-            done = false;
-
-            var first = string.@charCodeAt(position);
-            if (first < 0xD800 || first > 0xDBFF || position + 1 === length)
-                value = string[position];
-            else {
-                var second = string.@charCodeAt(position + 1);
-                if (second < 0xDC00 || second > 0xDFFF)
-                    value = string[position];
-                else
-                    value = string[position] + string[position + 1];
-            }
-
-            this.@stringIteratorNextIndex = position + value.length;
-        }
-    }
-
-    return {done, value};
-}