[Issue 4979] Implementing an interface twice results in different a reference for each interface

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=4979

Basile-z <b2.temp at gmx.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |b2.temp at gmx.com
         Resolution|---                         |INVALID

--- Comment #4 from Basile-z <b2.temp at gmx.com> ---
D is is not the same as c# and others. On reference types this is more to
perform a simple address comparison, exp when opEquals is overloaded.

The assert should be rather

  assert(typeid(foo1) is typeid(foo2))

but unfortunately typeid() on interfaces currently has a embarrassing bug, it
returns a TypeInfo_Class, not a TypeInfo_Interface.

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