Prepare push to trunk.  Now working on version 3.20.15.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/22468004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16091 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Make JSON::Parse return Local<Value>

It should be able to return Smi, etc. Not only JSObject.

BUG=v8:2821
TEST=cctest/test-api/JSONParseNumber
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/22416003

Patch from Takeshi Yoshino <tyoshino@chromium.org>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16092 ce2b1a6d-e550-0410-aec6-3dcde31c8c00