X87: turn on some tests of test-serialize

They were disabled by r21661. We turn on it because x87 snapshot can work now.

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/568833003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23999 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Support stepping into generator function.

R=aandrey@chromium.org, wingo@igalia.com
BUG=v8:3572
LOG=Y

Review URL: https://codereview.chromium.org/544953005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24000 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Minor compiler pipeline refactoring. Inline UpdateSharedFunctionInfo and make Parser::Parse responsible for setting the strict mode of the CompilationInfo.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/555553003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24001 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Serialize code stubs using stub key.

Also add some tracing to the code serializer.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/556243005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24002 ce2b1a6d-e550-0410-aec6-3dcde31c8c00