[llvm] r222935 - Simplify some more ownership using forward_list<T> rather than vector<unique_ptr<T>>

[Duncan P. N. Exon Smith]

> On 2014-Dec-03, at 16:58, Craig Topper <craig.topper at gmail.com> wrote:
> 
> Can we diff the tablegen outputs before and after the change?

Good call.

I reopened PR21735 and attached the files in there.  There are four files
that change:

lib/Target/ARM/ARMGenAsmMatcher.inc
lib/Target/Mips/MipsGenAsmMatcher.inc
lib/Target/Sparc/SparcGenAsmMatcher.inc
lib/Target/X86/X86GenAsmMatcher.inc