Commits
Joe Groff committed bb8b42260ba
SILGen/IRGen: Move union constructor generation to SILGen. Generate union constructors as SIL functions using the new 'union' instruction. Change UnionTypeInfo::emitInjectionFunctionBody into UnionTypeInfo::emitInjection, which emits the union value to an explosion rather than emitting the scalar return directly, and use it to implement IRGen lowering of the 'union' instruction. This breaks a few serialization tests because of mangler bugs handling generic unions, which I'll fix next. Swift SVN r7559