@Nullable
  private static String getTagName(@NotNull BraceMatcher matcher, @NotNull CharSequence fileText, @NotNull HighlighterIterator iterator) {
    if (matcher instanceof XmlAwareBraceMatcher) return ((XmlAwareBraceMatcher)matcher).getTagName(fileText, iterator);
    return null;
  }
@Nullable
  private static String getTagName(@NotNull BraceMatcher matcher, @NotNull CharSequence fileText, @NotNull HighlighterIterator iterator)