Anything that's still using preprocessor.pl should be using Preprocessor.py. We should just switch anything that's left and hg rm it.
Created attachment 448963 [details] [diff] [review] Patch (v1) This patch removes removes preprocessor.pl from config and js/src/config, and copies Preprocessor.py to the latter.
Why did this get backed out?
Seeing http://hg.mozilla.org/mozilla-central/rev/2535ab584956 happening before http://hg.mozilla.org/mozilla-central/rev/bde78741b33b , maybe there were other bustages?
http://hg.mozilla.org/mozilla-central/rev/e7cf79fd6d32 Needed a copy of Expression.py. (And we don't need to update tools/relic/relic, according to gerv)