private static void highlightVariant(@Nullable XSmartStepIntoVariant variant, @NotNull ScopeHighlighter highlighter) {
    TextRange range = variant != null ? variant.getHighlightRange() : null;
    if (range != null) {
      highlighter.highlight(Pair.create(range, Collections.singletonList(range)));
    }
  }
private static void highlightVariant(@Nullable XSmartStepIntoVariant variant, @NotNull ScopeHighlighter highlighter)