Save fails due to NPE

[stevemessick]

The following code cannot be saved. Note that "extends" is misspelled on line 2. If the typo is fixed the code can be saved. (This file is referenced from a library.) I thought CompilationUnitStructureBuilder was supposed to be trapping NPEs but this one got through somehow.

class test {
  factory test<X extneds List>(){}
}
//
typedef Map Fox<T1 extends Map>(List input);
class HashMapImplementation<K extends Hashable, V> implements HashMap<K, V> {}
//
class Fooa {
  final Bara<Fooa> bar = const Bara/* <Fooa> Workaround bug #­322 */();
}

class Bara<T extends Fooa> {
  const Bara();
}

main1() {
  print(new Fooa());
}
/*********/
class C1<Q> {
  Q x;
  C1(Q x) { this.x = x; }
}

class C2<Q> {
  Q x;
  C2(this.x) {}
}

main2() {
  C1<int> c1 = new C1<int>(0);
  C2<int> c2 = new C2<int>(1);
}
/*********/
class Foo {
  final Bar<Foo> bar = const Bar<Foo>();
}

class Bar<T extends Foo> {
  const Bar();
}

main3() {
  print(new Foo());
}
/*********/

class X {
  static final num MAX = 0;
  num yc,xc;
  mth() {
    xc = yc = MAX;
    xc.abs();
    num f = MAX;
  }
}
class Y {
  String x="hi";
  mth() {
    x.length;
    int n = 0;
    x.charCodeAt(n);
  }
}
class Z {
  Map m = const Map();
  mth() {
    var x = new List.from(['a']);
  }
}
class A {
  int x;
  mth() {
    int y = this.x;
  }
}
class B1 {
  B1();
  x(){}
}
class B2 extends B1 {
  B2() { super.x();}
}
class C {
  mth(Map x, q) {}
  mtf(q, Map x) {}
  m() { for (int i = 0; i < 5; i++); A x;}
}
class D {
  f(){} g(){f(/f/);}
}
class E {
  int x; mth() {var y = x;}
}
class F {
  var x = false;
}

[bwilkerson]

Set owner to @bwilkerson.
Added Accepted label.

[bwilkerson]

Fixed by http://codereview.chromium.org/8481001/.

Created a bug for the underlying compiler issue (http://code.google.com/p/dart/issues/detail?id=341).

---

Set owner to @stevemessick.
Added Fixed label.