swift

88f24e5f - [CSSimplify] Member ref decays into value witness for `makeIterator` in for-in

[CSSimplify] Member ref decays into value witness for `makeIterator` in for-in Reference to `makeIterator` in for-in loop context needs to be treated as a reference to a witness of `Sequence#makeIterator` requirement, otherwise it could lead to problems with retroactive conformances.