halide/Halide — pull request #333 by zvookin (2014-06-10 02:26:29+00:00)
Title: Add code to give better error message when using an undefined RDom dimen...

...sion.

(Fixes https://github.com/halide/Halide/issues/332 )

Add test for above.

Remove use of double underscores in identifer as these are reserved in C++.