llvm tablegen bugs

anonymous.td

class AAA {
  AAA a = !cast<AAA>(NAME);
}

foreach _ = [1, 2] in
  def : AAA;

multiclass BBB {
  def : AAA;
}

defm : BBB;
defm : BBB;

foreach-multiclass.td

class BBB {
  list<int> Val = [10];
}

multiclass AAA<BBB b> {
  foreach n = b.Val in
    def {
      int Val = n;
    }
}

def XXX : BBB;

foreach x = [XXX] in
  defm : AAA<x>;