rubinius/rubinius — pull request #1570 by txus (2012-02-24 11:09:27+00:00)
Title: Use `__send__` rather than `send` when calling methods on an AST visitor

This is because the visitor already has to implement/override `#send` to visit
Send nodes -- by using `#__send__`, the visitor is free to override `#send`
without causing trouble.