[BasicBlock] Add instructionsWithoutDebug methods to skip debug insts.

Reviewers: aprantl, vsk, mattd, chandlerc

Reviewed By: aprantl, vsk

Differential Revision: https://reviews.llvm.org/D45657


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@330316 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed