@Nullable
  private static String getInvokedOnLocalVar(GrExpression expression) {
    if (expression instanceof GrReferenceExpression) {
      final PsiElement resolved = ((GrReferenceExpression)expression).resolve();
      if (PsiUtil.isLocalVariable(resolved)) {
        return ((GrVariable)resolved).getName();
      }
    }
    return null;
  }
@Nullable
  private static String getInvokedOnLocalVar(GrExpression expression)