AutoTest: Turn global variable into attribute

Change-Id: Id45bafa61f03e8225d5f4224611e2f6db84a16b1
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/autotest/testcodeparser.h

@@ -102,6 +102,10 @@ private:
     void parsePostponedFiles();
     void releaseParserInternals();
 
+    // used internally to indicate a parse that failed due to having triggered a parse for a file that
+    // is not (yet) part of the CppModelManager's snapshot
+    bool m_parsingHasFailed = false;
+
     bool m_codeModelParsing = false;
     bool m_fullUpdatePostponed = false;
     bool m_partialUpdatePostponed = false;