Tweak unconditional-branch.ll passing on any hosts, while investigating x86_64-mingw32.
Sorry for the breakage.
For now, it will fail in two ways:
1. To fail for targeting x86_64-mingw32.
<stdin>:131:8: note: possible intended match here
0x30830a0100000002 3 0 1 0 0 is_stmt
2. To fail not to find the target x86.
llc: : error: unable to get target for 'x86_64-unknown-unknown',
see --version and --triple.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205621
91177308-0d34-0410-b5e6-
96231b3b80d8