tree: move git_oid into tree entry

A tree entry previously pointed directly into the object id within the
tree object itself; this is useful to avoid any unnecessary memory copy
(and an unnecessary use of 40 bytes per tree entry) but difficult if we
change the underlying `git_oid` object to not simply be a raw object id
but have additional structure.

This commit moves the `git_oid` directly into the tree entry; this
simplifies the tree entry creation from user data.  We now copy the
`git_oid` into place when parsing.

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/libgit2/object/tree/parse.c b/tests/libgit2/object/tree/parse.c
index 9d76a74f0..4e871dcfa 100644
--- a/tests/libgit2/object/tree/parse.c
+++ b/tests/libgit2/object/tree/parse.c
@@ -40,7 +40,7 @@ static void assert_tree_parses(const char *data, size_t datalen,
 		cl_assert(entry = git_tree_entry_byname(tree, expected->filename));
 		cl_assert_equal_s(expected->filename, entry->filename);
 		cl_assert_equal_i(expected->attr, entry->attr);
-		cl_assert_equal_oid(&oid, entry->oid);
+		cl_assert_equal_oid(&oid, &entry->oid);
 	}
 
 	git_object_free(&tree->object);