Synched postmortem script with not-so-recent changes.

Review URL: https://codereview.chromium.org/11744019

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13303 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix Win64 build.

R=dcarney@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11746015

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13304 ce2b1a6d-e550-0410-aec6-3dcde31c8c00