Speed up `opt_normalize_projection_type`#50818

Merged

bors merged 2 commits intorust-lang:masterfrom

nnethercote:faster-normalize

May 18, 2018

Commits on May 16, 2018

Avoid repeated HashMap lookups in `opt_normalize_projection_type`.
nnethercote
committed

Commits on May 17, 2018

Avoid allocations in `opt_normalize_projection_type`.
nnethercote
committed