@Nullable
  public static PsiType computeType(@NotNull GrOperatorExpression e) {
    if (isFake(e)) return null;
    final Function<GrOperatorExpression, PsiType> function = MAP.get(e.getOperator());
    assert function != null : e.getOperator();
    return function.fun(e);
  }
@Nullable
  public static PsiType computeType(@NotNull GrOperatorExpression e)