jruby/jruby — pull request #876 by komax (2013-07-11 13:39:52+00:00)
Title: bin/ast Add of IR Debugging Features 

Hi,

as discussed with @enebo and subbu I did a the following:
* moved dot graph generation into own new module `DotGraph`
* created a new flag -p --pass to only dump ir after -p
* -h shows which s are available
* --f, --formatted-ir to print the IR in a concise format
- indentation for each lexical scope like in the Ruby source code
- line numbers for IR as in `toStringInstrs()`
- The scope name is prepended
* -i works as before
* various `require 'jruby'` are merged into a single require in the beginning of the Ruby file