Layout constraints are only allowed inside '_specialize' attributes

[taylorswift]

we cannot do this:

extension BSONBinaryEncodable 
   where Self:RandomAccessCollection, Element:_Trivial
{
}
// error: layout constraints are only allowed inside '_specialize' attributes

but we are allowed to do this:

extension BSONBinaryEncodable 
    where Self:RandomAccessCollection, Element:AnyObject 
{
}

isn’t AnyObject a layout constraint?

[sveinhal (Svein Halvor Halvorsen)]

This think this is maybe AI-generated answer with a spam link added to the quoted content.