Tweak expected source stability results to handle specified rather than inferred iterator types

Author: airspeedswift

test/api-digester/source-stability.swift.expected

@@ -34,6 +34,10 @@ Constructor RangeReplaceableBidirectionalSlice.init(base:bounds:) has 2nd parame
 Constructor RangeReplaceableRandomAccessSlice.init(base:bounds:) has 2nd parameter type change from Range<Base.Index> to Range<RangeReplaceableRandomAccessSlice.Index>
 Constructor RangeReplaceableSlice.init(base:bounds:) has 2nd parameter type change from Range<Base.Index> to Range<RangeReplaceableSlice.Index>
 Constructor Slice.init(base:bounds:) has 2nd parameter type change from Range<Base.Index> to Range<Slice.Index>
+Func AnyBidirectionalCollection.makeIterator() has return type change from AnyIterator<Element> to AnyBidirectionalCollection.Iterator
+Func AnyCollection.makeIterator() has return type change from AnyIterator<Element> to AnyCollection.Iterator
+Func AnyRandomAccessCollection.makeIterator() has return type change from AnyIterator<Element> to AnyRandomAccessCollection.Iterator
+Func AnySequence.makeIterator() has return type change from AnyIterator<Element> to AnySequence.Iterator
 Func BidirectionalSlice.distance(from:to:) has return type change from Base.IndexDistance to BidirectionalSlice.IndexDistance
 Func BidirectionalSlice.index(_:offsetBy:) has return type change from Base.Index to BidirectionalSlice.Index
 Func BidirectionalSlice.index(_:offsetBy:limitedBy:) has return type change from Base.Index? to BidirectionalSlice.Index?