Small drop glue fixes#27618

Merged

bors merged 2 commits intorust-lang:masterfrom

dotdash:drop_fixes

Aug 12, 2015

Commits on Aug 7, 2015

Fix ICE when trying to drop an unsized type from a different crate
dotdash
committed

Commits on Aug 8, 2015

Fix the function return type used in get_res_dtor()
dotdash
committed