src: code cleanup

* removed unused code: ParseFunction, ParseVariable and ParseTypeUsage. All this is handled using NameHierarchies now.
* Moved the getErrorCount method from ParserClient to the StorageAccess
* MessageFinishedParsing doesn't know the error count anymore.
* StatusBarController now has a StorageAccess to fetch the error count when needed.

src/lib/Project.cpp

@@ -43,7 +43,7 @@ bool Project::load(const FilePath& projectSettingsFile)
 	{
 		m_storage->startParsing();
 		m_storage->finishParsing();
-		MessageFinishedParsing(0, 0, 0, m_storage->getErrorCount()).dispatch();
+		MessageFinishedParsing(0, 0, 0).dispatch();
 	}
 	else
 	{