Switch schedule early phase to use forward propagation.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/655833005

Cr-Commit-Position: refs/heads/master@{#24923}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24923 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Prevent recursion in the debug event listener.

R=ulan@chromium.org
BUG=chromium:409614
LOG=N

Review URL: https://codereview.chromium.org/684573005

Cr-Commit-Position: refs/heads/master@{#24924}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24924 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[turbofan] Work-around stack overflow in zlib.

TBR=dcarney@chromium.org

Review URL: https://codereview.chromium.org/678323002

Cr-Commit-Position: refs/heads/master@{#24926}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24926 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Use shared function info for eval cache key.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/678843004

Cr-Commit-Position: refs/heads/master@{#24927}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24927 ce2b1a6d-e550-0410-aec6-3dcde31c8c00