Change-Id: I66e27b54b59874f5f69958cf9e178a5ce1b2da97
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

The ::run method is run in a separate thread, yet the owner of the
buildstep is the gui thread. As such we need to use a DirectConnection
to ensure that the slot is called in the right thread.

Task-number: QTCREATORBUG-9660
Change-Id: Ia206f3256a23f70f50d31c739359ff24b952fe46
Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>

Task-number: QTCREATORBUG-9643

Change-Id: Ia0a2427a186fd9ad24e1cf620df48be13032a69b
Reviewed-by: Christian Stenger <christian.stenger@digia.com>
Reviewed-by: Kai Koehne <kai.koehne@digia.com>

This is already done in Master and 2.8 branches.

Task-number: QTCREATORBUG-9455

Change-Id: I8ae9e5a14ba561640d3389e08cb74a5ec856d335
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

Task-number: QTCREATORBUG-9626
Task-number: QTCREATORBUG-9083

Cherry-picked: 4ff03aa71a7122d4573d4dc270a0847818842054

Change-Id: I69915d9da91cde39b1bc32f150c30a5e97cba157
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

The stub incorrectly send its pid before reading the environment file,
and qtcreator does interpret that as sign that it can delete the
environment file.

Task-number: QTCREATORBUG-9024
Change-Id: Id44777abdfdd94aa10815cb00ca27846b95a3ec7
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>

Remember using/typedef declarations we have already looked up and
stop if we try it again.

Change-Id: I91bf0aef4df18539a47d015f0113543aef1f692a
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
(cherry picked from commit 50a900e509be2e1f448f29be126ba3b7f8173901)

Remember auto declarations we have already looked up and stop if we try
it again.

Task-number: QTCREATORBUG-9503

Change-Id: I989b11609c98bf197ce916d79c9d452294355053
Reviewed-by: Przemyslaw Gorszkowski <pgorszkowski@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
(cherry picked from commit 8f1b6656677344e9ca4b6798ddd900725c478b16)