MIPS: Reland "Fixed environment assignment for LCheckNonSmi."
MIPS: Reland "Fixed environment assignment for LCheckNonSmi."

Port r20495 (705b65bc)

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/225023007

git-svn-id: b158db1e4b4ab85d4c9e510fdef4b1e8c614b15b@20518 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh