[X86] X86MaskedGatherSDNode shouldn't inherit from MaskedGatherScatterSDNode

The classof implementation in MaskedGatherScatterSDNode doesn't consider X86MaskedGatherSDNode so its misleading.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317733 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed