esnext/esprima — pull request #1 by mathiasbynens (2014-08-24 20:54:16+00:00)
Title: Support future regular expression flags

This makes Esprima no longer throw on regular expression literals like `/a/y` or `/a/u`.

https://github.com/ariya/esprima/pull/264
https://github.com/mathiasbynens/esprima-es6-regexp

This is needed to add regexpu (http://mths.be/regexpu) integration to esnext.