Can't call the fact method of subclass, when the method return the the super class type.

[LiaoPeng]

The code https://webassembly.studio/?f=u0j2rkrcq49

Expected output:
1
2
In fact, the output:
1
1

[dcodeIO]

Also somewhat related to GC, in that there are no virtual methods / no virtual lookup table yet. In your fiddle

(<A>something).getAge(); // calls A#getAge
(<B>something).getAge(); // calls B#getAge

[MaxGraey]

Superseded by #693