C++: highlighter clean-ups

- Moved TextEditor::SemanticHighlighter::Result to
  TextEditor::HighlightingResult
- Moved SemanticInfo::UseKind to CppHighlightingSupport::Kind

Change-Id: I14faab1891ca691a0691cfd9243edf19fcd3d3df
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

src/plugins/qmljseditor/qmljssemantichighlighter.h

@@ -78,7 +78,7 @@ public:
         Max // number of the last used value (to generate the warning formats)
     };
 
-    typedef TextEditor::SemanticHighlighter::Result Use;
+    typedef TextEditor::HighlightingResult Use;
 
     SemanticHighlighter(QmlJSTextEditorWidget *editor);