[Sheriff] Revert "Record allocation stack traces" and "Temporarily disable test-heap-profiler/TrackHeapAllocations".

This reverts commit r17301 and r17303 for breaking the nosnap builds.

TBR=yurys@chromium.org

Review URL: https://codereview.chromium.org/34523002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17307 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Add test for push-to-trunk script.

This is a prototype attempt for testing the push-to-trunk script. There are several todos left, but it is not clear if it is worth investing time into those. The test is meant to aid in verifying modifications in the push-to-trunk script.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/32283002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17308 ce2b1a6d-e550-0410-aec6-3dcde31c8c00