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>

that is, setting a break point at the opening brace or at function.
Set StackFrame::from correctly.

This should save debugger round trips and crashes in the debugging
helpers.
Add respective option to debugging helper option page, defaulting to
true.On this occasion, make CDB detect shadowed variables correctly
and display them as "<shadowed n>" as does the Gdb engine by
reversing the direction in which
CdbSymbolGroupContext::populateINameIndexMap works.
Rubber-stamped-by: hjk <qtc-committer@nokia.com>

- Turn off initial breakpoint when attaching (terminal) and
  additionally ignore it before the first startup complete
- Refuse to step  the artifical thread created when
  interrupting
- If possible, switch to thread 0 when interupting (do not
  use artificial thread)
- Ignore non-fatal exceptions in dumper calls (stray Startup-
  complete-traps)
- Use right thread for dumper call loading
- Rename windows exception code enumeration
- Turn off modification off watch-data children by setType,
  show empty lists correctly.
- Verbose warnings about inserting invalid watch data.

Use new call syntax of 6.11. for dumper call loading. Execute
Dumpers in a single thread (current) if at all possible (not
in some WaitFor or artificial break thread). Show one more
frame in threads view if it is FastCallReturn. Fix step into
(ignore one event), log some more exceptions. Generally log
exceptions to the debugger windows to be able to see stuff
like DLL missing, etc.

- Do not deref d-ptr when checking on QVariants of PODS
- Make type/value fixing of dumper results more fine-grained
- Allow children in expandPtrToDumpage (QWidget-Pointers)
- Fix broken size cache (queuePrefix was empty)
- Compile

This reverts commit abf5e3dd.

- Modified WatchModel to handle storage of an hierarchy
  of WatchItems.
- Factored out code for asynchronous population to
  AsyncWatchModel and added a mixin for convenient
  handling
- Added base class for synchronous models.
- Implement simple, synchronous models for CDB, greatly
  simplifying code and finally getting manual
  expansion right.
Signed-off-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.

Handle functions with 0 variables correctly in the stack view.
Give names to unnamed formal parameters (causing WatchData
warnings). Ignore exception 06ba.

Make debugger tooltip API more general, have the engines check the
correct file type, figure out the expression and context from the text
editor.

Put common functionality in watchutils.cpp. In the CDB engine, check
whether a tooltip expression is a known variable within the stack frame
context. If so, retrieve via symbol group or dumpers. Cache by function
and expression.
Reviewed-by: hjk <qtc-committer@nokia.com>

Add dumper calls, parser etc. Catch crashes
in the dumper functions.

Log exceptions with stacktrace.

Filter debugging output correctly, some glitches. Extract
base class for debugging output to be able to intercept
debugging output for other purposes (such as disassembling).

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