Summary:
Parsing registers no longer consume the $ token before it's confirmed whether it really has a register or not, therefore it's no longer impossible to match symbols if registers were tried first.
Depends on D3232
Reviewers: matheusalmeida, vmedic
Reviewed By: matheusalmeida
Differential Revision: http://llvm-reviews.chandlerc.com/D3233
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205297 91177308-0d34-0410-b5e6-96231b3b80d8