Allow inlining of functions containing function literals.

R=yangguo@chromium.org
BUG=v8:1322
TEST=mjsunit/compiler/inline-literals

Review URL: https://codereview.chromium.org/10702036

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13945 ce2b1a6d-e550-0410-aec6-3dcde31c8c00