A function expression is a primary expression according to ES6 spec: https://people.mozilla.org/~jorendorff/es6-draft.html#sec-primary-expression Follow the spec's convention in our code.
Created attachment 245385 [details] Cleanup
Created attachment 245386 [details] Mention failIfStackOverflow()
Comment on attachment 245386 [details] Mention failIfStackOverflow() r=me
Committed r179159: <http://trac.webkit.org/changeset/179159>