Re: [GOOGLE] Emit linkage_name when built with -gmlt and for abstract decls

[Cary Coutant]

> This patch emits linkage_name at -gmlt. It also make sure abstract
> decls' linkage_names are emitted so that inlined functions can also
> find linkage name.
>
> Bootstrapped and passed regression test.
>
> OK for google branches?

OK.

-cary