Return value glitch in file name normalization.

Fixing various problems with breakpoints and opened files caused by CDB
returning lower-case file names.
Task-number: QTCREATORBUG-438
Reviewed-by: hjk <qtc-committer@nokia.com>
Acked-by: mariusSO <qt-info@nokia.com>

Remove unused exec functions, replace by calls to the respective
stepExec/nextExec, which sets the code level automagically
according to the OperateByInstruction action.

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>

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

Reviewed-by: Trust Me

Following implicit cast occurred error C2664 from cl compiler.
 (const WCHAR *) => (const ushort *)
 (const ushort *) => (PCWSTR)
So fixed by using a explicit cast which reinterpret_cast.

Set/modify breakpoints using the new takeXX() APIs of the breakhandler.
Add API for inserted breakpoints (as a 2-step process for pending
breakpoints). Format breakpoint tooltip properly with tr() and
more esthetically pleasing. Get rid of the old scheme of retrieving
and matching the breakpoints from the debugger engine, use ids.

Load in a 'well-defined' (temporary) breakpoint
at main().

Log exceptions with stacktrace.

Add function to automagically resolve function symbol names
that are missing the module name (module!foo). Kill some
trailing whitespace. Add a hack to transform qMain->main for VS.

Enable temporarily stopping for setting breakpoints. Fix terminating the
debuggee in exitDebugger().

Improve locals handling, add watcher handling via expressions. Make
debug marker appear, start with breakpoint synchronization.