Revert "IRgen: Make sure any prolog instructions get debug info.", the lexical
scope hasn't been set up yet so this isn't valid. It was just a cleanup to the
IR, so I'm going to ignore it for now.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107356 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed