private @NotNull List<RangeHighlighter> getHighlightersList() {
    // braces are highlighted across the whole editor, not in each injected editor separately
    Editor editor = myEditor instanceof EditorWindow ? ((EditorWindow)myEditor).getDelegate() : myEditor;
    List<RangeHighlighter> highlighters = editor.getUserData(BRACE_HIGHLIGHTERS_IN_EDITOR_VIEW_KEY);
    if (highlighters == null) {
      highlighters = new ArrayList<>();
      editor.putUserData(BRACE_HIGHLIGHTERS_IN_EDITOR_VIEW_KEY, highlighters);
    }
    return highlighters;
  }
private @NotNull List<RangeHighlighter> getHighlightersList()