private static PsiMethodCallExpression findCallExpression(@NotNull PsiElement anchor) {
    final PsiElement argList = PsiUtil.skipParenthesizedExprUp(anchor).getParent();
    if (argList instanceof PsiExpressionList) {
      final PsiElement parent = argList.getParent();
      if (parent instanceof PsiMethodCallExpression) {
        return (PsiMethodCallExpression)parent;
      }
    }
    return null;
  }
private static PsiMethodCallExpression findCallExpression(@NotNull PsiElement anchor)