Clean up junk & add caching to stability#25785

Merged

bors merged 4 commits intorust-lang:masterfrom

arielb1:cleanup-201505

May 26, 2015

Commits on May 26, 2015

Clean-up some junk

arielb1
authored and
Ariel Ben-Yehuda
committed
Make caching in stability work. This improves stability check performance

arielb1
authored and
Ariel Ben-Yehuda
committed
Use lookup_locally_or_in_crate_store more often

arielb1
authored and
Ariel Ben-Yehuda
committed
Remove ObjectCastMap

arielb1
authored and
Ariel Ben-Yehuda
committed