CppTools: Prioritize project parts from active project

...when selecting one for the editor document.

Change-Id: I85066aaa0862870cb2db2fb2cb40c2b2c23b2cac
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/clangcodemodel/clangeditordocumentparser.h

@@ -38,7 +38,8 @@ public:
 
 private:
     void updateHelper(const QFutureInterface<void> &future,
-                      const CppTools::WorkingCopy &) override;
+                      const CppTools::WorkingCopy &,
+                      const ProjectExplorer::Project *activeProject) override;
 };
 
 } // namespace ClangCodeModel