Commits
John McCall committed 9c415a3bedb
Remove the TrivialSubtype conversion kind and implement its basic logic in libAST, which both makes it easier to implement and makes it possible to use in the places that should care about it, i.e. in IR-gen and SIL-gen. Per Doug, none of the places that were introducing trivial-subtype constraints really needed to do so rather than just using subtype constraints. Swift SVN r12679