Corey Richardson 34ffe3cc1c rustc: support dumping the AST as JSON
This is mostly useful for working on rustc, when one is unfamiliar with the
AST a particular construct will produce. It's a -Z flag as it's very much for
debugging.

Closes #10485
2014-02-19 13:32:26 -05:00
..
2013-01-29 15:16:43 -08:00