Forwarding stubs don't tell where they forward to

[scheglov]

class A<T> {
  void foo(T p) {}
}
class B<U> extends A<U> {}
class C extends B<int> {
  void bar() {
    foo(1);
  }
}

In this code foo(1) invocation is resolved to root::package:test/test.dart::C::@methods::foo, but C does not define foo, so Analyzer cannot find it when translating CanonicalName to MethodElement.

[scheglov]

Paul wrote 10x better description of the problem.
So, I'm closing this one.