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backport from master

It was only used for the watch-QImage-while-it-is-being-drawn-on feature,
which does not seem overly useful.

[Cherry-picked from master]

Acked-by: kh <qtc-committer@nokia.com>

Output warnings to debugger log. Prevent breakpoints from
being set several times when loading session data by
clearing the complete break handler.
Reviewed-by: hjk <qtc-committer@nokia.com>

Backport of a very similar patch to master.

prevent inter-session dependencies

cherry-picked from master

Conflicts:

	src/plugins/debugger/gdb/gdbengine.cpp

Last minute show stopper bug, this only affects cmake projects, so it
should be safe.

Reviewed-By: Trust me

Reviewed-by: Trust Me

Conflicts:

	src/libs/cplusplus/CppBindings.cpp
	src/libs/cplusplus/CppBindings.h
	src/libs/cplusplus/FastPreprocessor.cpp
	src/libs/cplusplus/FastPreprocessor.h
	src/plugins/cpptools/cppcurrentdocumentfilter.cpp
	src/plugins/cpptools/cppcurrentdocumentfilter.h
	src/plugins/cpptools/cppsemanticsearch.cpp
	src/plugins/cpptools/cppsemanticsearch.h
	src/plugins/duieditor/parser/qmljs.g
	src/plugins/duieditor/parser/qmljsast.cpp
	src/plugins/duieditor/parser/qmljsast_p.h
	src/plugins/duieditor/parser/qmljsastfwd_p.h
	src/plugins/duieditor/parser/qmljsastvisitor.cpp
	src/plugins/duieditor/parser/qmljsastvisitor_p.h
	src/plugins/duieditor/parser/qmljsengine_p.cpp
	src/plugins/duieditor/parser/qmljsengine_p.h
	src/plugins/duieditor/parser/qmljsgrammar.cpp
	src/plugins/duieditor/parser/qmljsgrammar_p.h
	src/plugins/duieditor/parser/qmljslexer.cpp
	src/plugins/duieditor/parser/qmljslexer_p.h
	src/plugins/duieditor/parser/qmljsmemorypool_p.h
	src/plugins/duieditor/parser/qmljsnodepool_p.h
	src/plugins/duieditor/parser/qmljsparser.cpp
	src/plugins/duieditor/parser/qmljsparser_p.h
	src/plugins/duieditor/parser/qmljsprettypretty.cpp
	src/plugins/duieditor/parser/qmljsprettypretty_p.h
	src/plugins/duieditor/rewriter/rewriter.cpp
	src/plugins/duieditor/rewriter/rewriter_p.h
	src/plugins/duieditor/rewriter/textwriter.cpp
	src/plugins/duieditor/rewriter/textwriter_p.h
	src/shared/cplusplus/ASTClone.cpp
	tests/manual/cplusplus/main.cpp

The nogui mode is required for the installer, to keep the noise low.
Also, get rid of QApplication passing, as all methods we call
are static anyway, which made the compiler complain about
unreferenced formal parameters.

Revieved-by: Friedemann Kleint

This depended on a stretch that was removed. Instead, make the stretch
factor of the stretch 0 and make sure that the method boxes used by the
CppEditor and ScriptEditor take all its space.

Reviewed-by: con

Reviewed-by: mae
Reviewed-by: con

Acked-by: dt <qtc-committer@nokia.com>

Acked-by: Daniel Molkentin <daniel.molkentin@nokia.com>

By using the palette foreground color for line numbers when the
background is very dark, instead of the palette's "dark" color.

Reviewed-By: Friedemann Kleint

Reviewed-by: hjk

Reviewed-by: Ossi

Reviewed-by: con

Didn't check whether the lookup actually returned a valid symbol before
accessing the name.

Reviewed-by: Roberto Raggi

Otherwise creation of the database fails on the first startup...

It seems like some versions install with the postfix " 64-bit." The
change also makes it easier to add new postfixes.

Reviewed-by: owolff

Reviewed-by: Thorbjorn Lindeijer

Reviewed-By: Thorbjorn Lindeijer

Reviewed-by: dt