private void highlight(VirtualFile file, int start, int end) {
    removeHighlighter();

    editor = FileEditorManager.getInstance(project).openTextEditor(new OpenFileDescriptor(project, file), false);
    if (editor == null) {
      return;
    }
    myHighlighter = editor.getMarkupModel().addRangeHighlighter(
      EditorColors.SEARCH_RESULT_ATTRIBUTES,
      start,
      end,
      HighlighterLayer.SELECTION - 100,
      HighlighterTargetArea.EXACT_RANGE
    );
  }
private void highlight(VirtualFile file, int start, int end)