Revert "Moved type feedback vector to SharedFunctionInfo."

This reverts commit 828f1d563a3f0972135886888fd26526e04da07f.

Conflicts:
	src/compiler.cc
	test/cctest/test-compiler.cc

BUG=
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/196283015

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@19911 ce2b1a6d-e550-0410-aec6-3dcde31c8c00