Repro for OOM bug in test.dart (applies to r29345).

dart/type_variable_function_type_test.dart

+typedef T Func<T>();
+
+class Foo<S> {
+  m(x) => x is Func<S>;
+}
+
+class Bar<T> {
+  f() {
+    T local() {}
+    return local;
+  }
+}
+
+void main() {
+  var x = new Foo<List<String>>();
+  if (new DateTime.now().millisecondsSinceEpoch == 42) x = new Foo<int>();
+  print(x.m(new Bar<String>().f()));
+  print(x.m(new Bar<List<String>>().f()));
+}