Add IsFinished arg to EmitBlock.
 - Indicates that caller is done with the block and it can be dropped
   if it has no predecessors. Useful for callers who need to make
   landing pads but which may not be reached.

No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59207 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed