Speed up operations on scopes#27943

Merged

bors merged 7 commits intorust-lang:masterfrom

arielb1:fast-region

Aug 25, 2015

Commits on Aug 24, 2015

split ReInfer into ReVar and ReSkolemized

Ariel Ben-Yehuda
authored and
arielb1
committed
Use a u32 instead of a usize in CodeExtent

Ariel Ben-Yehuda
authored and
arielb1
committed
Use a Vec instead of an HashMap for the scope hierarchy

Ariel Ben-Yehuda
authored and
arielb1
committed
store the CodeExtent directly in FreeRegion

Ariel Ben-Yehuda
authored and
arielb1
committed
fix test
arielb1
committed
address nits
arielb1
committed
fix other test
arielb1
committed