Clang: Only apply fixits to the corresponding revision

Change-Id: I4f4136369e1b261338d444670c212565e0c6b824
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>

src/plugins/clangcodemodel/clangeditordocumentprocessor.h

@@ -81,6 +81,8 @@ public:
 
     ClangBackEnd::FileContainer fileContainer() const;
 
+    void clearDiagnosticsWithFixIts();
+
 public:
     static ClangEditorDocumentProcessor *get(const QString &filePath);