Merge pull request dotnet/coreclr#8505 from pgavlin/VSO297215
authorPat Gavlin <pgavlin@gmail.com>
Wed, 7 Dec 2016 23:16:09 +0000 (15:16 -0800)
committerGitHub <noreply@github.com>
Wed, 7 Dec 2016 23:16:09 +0000 (15:16 -0800)
Use a left-leaning comma tree when morphing a stelem.ref helper.

Commit migrated from https://github.com/dotnet/coreclr/commit/bea2a8cf3d1ffe90683c47758f27f7cc83850982


Trivial merge