Defer slow branch of GetAlignedPointerFromInternalField

BUG=

Review URL: https://codereview.chromium.org/14137026

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@14444 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Do not dereference handles during relocation.

R=hpayer@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/13982023

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@14445 ce2b1a6d-e550-0410-aec6-3dcde31c8c00