'P<Int>' cannot be used within a protocol-constrained type

[xAlien95 (Stefano De Carolis)]

Is this expected to work?

class C {}
protocol P<T> { associatedtype T }

let foo: any C & P<Int>  // error: Non-protocol, non-class type 'P<Int>' cannot
                         //        be used within a protocol-constrained type

Edit: It should.

apple/swift/blob/b0fb7c54b2c5159be5f23daeec277f0deded9be3/lib/Sema/TypeCheckType.cpp#L4064-L4065