pkg/front_end/testcases/general/issue49985.dart.textual_outline_modelled.expect

class B<X, Y> {
  B(this.x);
  X x;
}

class C<X, Y> = B<X, Y> with Mixin;

mixin Mixin {}

typedef A<T> = C<T, int>;

var field = A((a, b) => 42);