[llvm] r174113 - Give the MCStreamer class hierarchy LLVM RTTI facilities for use with

[Eli Bendersky]

Another thing (sorry, missed it before hence sending separately):

> +
> +  static bool classof(const MCStreamer *S) {
> +    return S->getKind() == SK_NullStreamer;
> +  }
>  };

Not SK_AsmStreamer here?


Eli