Ensure the constant operand for heap-object store-named-field is not a smi.

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/210193002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@20208 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Add support for per-isolate private symbols

R=mstarzinger@chromium.org
BUG=
LOG=Y

Review URL: https://codereview.chromium.org/196103004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@20209 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/master'