Fix to_boolean type feedback for unary and binary ops

BUG=
R=jkummerow@chromium.org, rossberg@chromium.org

Review URL: https://codereview.chromium.org/17444011

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15319 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Handle AccessorPair struct in heap snapshot.

R=svenpanne@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/17616002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15320 ce2b1a6d-e550-0410-aec6-3dcde31c8c00