@Override
    public void visitLiteralExpression(@NotNull PsiLiteralExpression expression) {
      final PsiType type = expression.getType();
      if (PsiTypes.booleanType().equals(type) || PsiTypes.nullType().equals(type)) {
        // don't search index for literals of other types, as they can be written in many many kinds of ways for the same value.
        if (!handleWord(expression.getText(), CODE, myCompilingVisitor.getContext())) return;
      }
      super.visitLiteralExpression(expression);
    }
@Override
    public void visitLiteralExpression(@NotNull PsiLiteralExpression expression)