Clang: Undefine language features as fix for MSVC2015/clang-3.8.0

This applies the following change for the clang code model, too.

  commit d13d179524
  Clang Static Analyzer: Workaround analyzing MSVC2015 projects with clang 3.8.0 II

Change-Id: Ia229d7e8b24c2e1c0a83d9a53c623ea1f79c4a06
Reviewed-by: Christian Kandeler <christian.kandeler@theqtcompany.com>

src/plugins/cpptools/compileroptionsbuilder.h

@@ -52,6 +52,7 @@ public:
     virtual void addOptionsForLanguage(bool checkForBorlandExtensions = true);
 
     void addMsvcCompatibilityVersion();
+    void undefineCppLanguageFeatureMacrosForMsvc2015();
 
 protected:
     virtual bool excludeDefineLine(const QByteArray &defineLine) const;