Merge pull request dotnet/coreclr#21589 from CarolEidt/Fix21546
authorCarol Eidt <carol.eidt@microsoft.com>
Thu, 20 Dec 2018 23:40:55 +0000 (15:40 -0800)
committerGitHub <noreply@github.com>
Thu, 20 Dec 2018 23:40:55 +0000 (15:40 -0800)
Transform SIMD8 to FIELD_LIST if promoted

Commit migrated from https://github.com/dotnet/coreclr/commit/b0996f3c12faf1d1b5d965087cfa62fc8c84a75b


Trivial merge