Commits

Doug Gregor committed f554fb9680c
Member type lookup: when we have a type witness, use it. This doesn't actually break the circular type-checking issues with have with associated type inference, but it makes them less painful. Fixes rdar://problem/20549165. While here, and as a test, remove the _prext_underestimateCount workound from the library. _CollectionDefaultsType now refines _SequenceDefaultsType. Swift SVN r27368