- mutual inlining strict and non-strict functions in crankshaft.
- assignment to undefined variable with eval in scope.
- propagation of strict mode through lazy compilation.

BUG=
TEST=test/mjsunit/strict-mode.js test/mjsunit/strict-mode-opt.js

Review URL: http://codereview.chromium.org/6814012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7561 ce2b1a6d-e550-0410-aec6-3dcde31c8c00