[PATCH] Add Forward-Edge Control-Flow Integrity support

[JF Bastien]

> How about: "ARM support for the jumptable attribute is currently limited to code with small numbers of indirect calls". 
> 
> Or CFI/x86 commit could temporarily remove ARM support pending performance investigations. The default in TargetInstrInfo is to fail the compile with a message that says the backend doesn't support the jumptable attribute.

I think the later would be better.

http://reviews.llvm.org/D4167