private static boolean containsMultilineStrings(GrExpression expr) {
    final Ref<Boolean> result = Ref.create(false);
    expr.accept(new GroovyRecursiveElementVisitor() {
      @Override
      public void visitLiteralExpression(@NotNull GrLiteral literal) {
        if (GrStringUtil.isMultilineStringLiteral(literal) && literal.getText().contains("\n")) {
          result.set(true);
        }
      }

      @Override
      public void visitElement(@NotNull GroovyPsiElement element) {
        if (!result.get()) {
          super.visitElement(element);
        }
      }
    });
    return result.get();
  }
private static boolean containsMultilineStrings(GrExpression expr)