[WebAssembly] Add getSetCCResultType placeholder override to handle vector compare results.

Necessary to get the rL335821 bugfix (which was reverted at rL335871) un-reverted.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@335884 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed