Beware of negative sizes.

Add a dumper for QStack. Also don't crash when accessing an uninitialized
pointer when the pointer looks bad to begin with.

By fixing a bug in CdbDebugEnginePrivate::setCodeLevel.

Reviewed-by: hjk

Reviewed-by: hjk

	modified:   src/plugins/qt4projectmanager/qtmodulesinfo.cpp

Since we can easily do that, just do it. No gurantee that we aren't
going to use rtti in the future.

Reviewed-by: dt

Solves a problem with infinitely running QProgressBar animation in
QMacStyle.

Reviewed-by: Roberto Raggi

There was a case where "childtype" had to be used instead of "type".

Instead of just removing the highlight.
Reviewed-by: Robert Loehning