Commits
Erik Eckstein committed 40c1160713e
Revert r28111 "rework the peephole for optional-to-optional casts to be more specific" and r28105: "implement <rdar://problem/17013042> T! <-> T? conversions should not produce a diamond" r28111 broke the stdlib build. I also reverted r28105, because r28111 fixes regressions introduced in r2805. Swift SVN r28114