Update representation-from-uses to support smi.

R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15692004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@14801 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
DummyUse if Representation::Tagged()+Type::Smi() to Representation::Smi()

R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15778006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@14802 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Prepare push to trunk.  Now working on version 3.19.5.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/16002003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@14803 ce2b1a6d-e550-0410-aec6-3dcde31c8c00