3 Commits

Author	SHA1	Message	Date
Doug Gregor	c94d1cd31a	[Type checker] The term "layout constraint" is confusing; don't use it. ... Within the compiler, we use the term "layout constraint" for any constraint that affects the layout of a type parameter that has that constraint. However, the only user-visible constraint is "AnyObject", and calling that a layout constraint is confusing. Drop the term "layout" from diagnostics. Fixes rdar://problem/35295372.	2017-11-02 12:03:09 -07:00
Doug Gregor	6d9e921983	Restrict the ability to specify "protocol P : class, AnyObject" to Swift >= 5.	2017-09-18 13:28:31 -07:00
Doug Gregor	d0aa22c2c7	Allow "protocol P : class, AnyObject..." for Swift 4 compatibility. ... Because of the way we modeled the 'class' constraint in Swift <= 4, we allowed both 'class' and 'AnyObject' to be specified on a protocol, even in Swift 4 when they became equivalent. Recent refactoring started rejecting such code; allow it now. Fixes rdar://problem/34496151.	2017-09-18 13:28:31 -07:00