Update CheckBothSmi, CheckInteger32ValidSmiValue, CheckUInteger32ValidSmiValue, SmiAddConstant, SmiNot, AddSmiField and Test to support x32 port.
Update CheckBothSmi, CheckInteger32ValidSmiValue, CheckUInteger32ValidSmiValue, SmiAddConstant, SmiNot, AddSmiField and Test to support x32 port.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/236723004

git-svn-id: b158db1e4b4ab85d4c9e510fdef4b1e8c614b15b@20862 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

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