Fix assertion scope in Runtime_GetScript.

The HeapIterator implies DisallowHeapAllocation, but Script::GetWrapper
may allocate.

LOG=N
R=jkummerow@chromium.org
BUG=chromium:410033

Review URL: https://codereview.chromium.org/680283002

Cr-Commit-Position: refs/heads/master@{#25001}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25001 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Add test case for replacing turbofan code for debugging.

R=jarin@chromium.org
BUG=v8:3660
LOG=N

Review URL: https://codereview.chromium.org/665833003

Cr-Commit-Position: refs/heads/master@{#25002}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25002 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Changed free(buffer) to delete [] buffer.

This bug (mismatch between new[] and free) was found by running VC++'s /analyze on all of Chrome.

BUG=chromium:427616
LOG=N
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/686193004

Patch from Bruce Dawson <brucedawson@chromium.org>.

Cr-Commit-Position: refs/heads/master@{#25003}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25003 ce2b1a6d-e550-0410-aec6-3dcde31c8c00