rewrite handling of forward ref'd instruction metadata 
to used deferred resolution instead of creating a temporary
node + rauw.  There is no reason to create the temporary
mdnode, then do rauw, then destroy it.

llvm-svn: 100086
2 files changed
tree: aa9495ab24add7eb23915939772a038a971b89b5
  1. clang/
  2. compiler-rt/
  3. llvm/