[RS4GC] Refactoring to make a later change easier, NFCI

Summary:
These non-semantic changes will help make a later change adding
support for deopt operand bundles more streamlined.

Reviewers: reames, swaroop.sridhar

Subscribers: sanjoy, llvm-commits

Differential Revision: http://reviews.llvm.org/D13491

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249779 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed