Fixed crash in FindUsages on a dirty file in a large project, which is saved
while the FindUsages is still running.

Reviewed-by: Friedemann Kleint

Introduce multithread-locking to Core::MimeDatabase as it is
invoked from the indexer thread to sort apart headers and sources.
Add a convenience to operate on a sequence to avoid locking for each
file.

foreach()-Loops.

Reviewed-by: Erik Verbruggen

In preparation for finding macro uses.

* Macro: add offset and length
* MacroUse: add line
* Document: add convenience functions for finding a macro definition, use
  or undefined use at a given location.

Reviewed-by: Erik Verbruggen

__stdcall for all compilers (MSVC and MinGW, possibly others may use it)
__w64 is MSVC only, deprecated there, but still used in some places

Reviewed-By: Roberto Raggi
(cherry picked from commit 5832c6b5)

__stdcall for all compilers (MSVC and MinGW, possibly others may use it)
__w64 is MSVC only, deprecated there, but still used in some places

Reviewed-By: Roberto Raggi

Encapsulate the details.

Move the API to the progress manager.
Added a first Mac implementation, other
platforms are pending.

This reverts commit 6a9e7ab0.

This change breaks OSX very badly.

This reverts commit 6a9e7ab0.

This reverts commit 7aa24116.
It breaks the code model updates completely. So reverting this change
until we have the right thing.

Reviewed-by: Roberto Raggi

Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>

Add state logic to CppCodeModelManagerInterface, making it aware whether
an indexer is running, protect the update methods from another
invocation while running. Add changed signals to IVersionControl and
VCSManager and wire them to the update methods. Add a menu action for
manually updating.

Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>
Reviewed-by: con <qtc-committer@nokia.com>

Ensure the code model receives file names with clean paths ('/')
and fix paths in the relevant places of the code model. Pass on clean
paths from Cpp reference find and display them correctly in the search
window tooltip.

Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>

updateModifiedFiles ckecks the timestamp and reparses all the modified files in the current snapshot.

Should not be necessary when nothing changed in the project info. This
also fixes a problem where include file scanning happened twice after
saving a pro file.

Reviewed-by: Roberto Raggi

Found by Roberto.

Ensure the user can stop a semantic search and added a method to get a pointer to the ModelManagerInterface.

Which is 'quite' important, since Qt builds by default generate
frameworks.

In particular macros that are only checked for definition or are
expanded during the evaluation of an #if or #elif directive are now also
added to the list available through Document::macroUses().

The names of undefined macros that are interesting (because they're used
in an #ifdef or a defined(...)) are now available through
Document::undefinedMacroUses().

Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>