C++: Limit parsing of initializer clauses

...to prevent out of memory crash for generated tables.

Change-Id: I8f9f51829fcce5bccfe0dba8852023f8dd7d6e37
Task-number: QTCREATORBUG-14390
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@theqtcompany.com>

src/libs/3rdparty/cplusplus/Parser.h

@@ -27,6 +27,7 @@
 #include "TranslationUnit.h"
 #include "MemoryPool.h"
 #include <map>
+#include <stack>
 
 namespace CPlusPlus {
 
@@ -321,6 +322,7 @@ private:
     bool _inExpressionStatement: 1;
     int _expressionDepth;
     int _statementDepth;
+    std::stack<int> _initializerClauseDepth;
 
     MemoryPool _expressionStatementTempPool;
     std::map<unsigned, TemplateArgumentListEntry> _templateArgumentList;