r179310 - Exclude test30 of Sema/return.c for Hexagon since setjmp.h include file

[Rafael Espíndola]

> Attached patch contains the  change. Please let me know if it is good to
> commit.

It is going the right way, but do you need all that? For example, can
__jmp_buf_tag be an empty struct?

Thanks,
Rafael