[test] Update expected "stability-stdlib-source"

Author: benrimmington

test/api-digester/Outputs/stability-stdlib-source-x86_64.swift.expected

@@ -28,3 +28,8 @@ Func Unicode.UTF8.decode(_:) has generic signature change from <I where I : Swif
 Constructor Mirror.init(_:children:displayStyle:ancestorRepresentation:) has generic signature change from <Subject, C where C : Swift.Collection, C.Element == Swift.Mirror.Child> to <Subject, C where C : Swift.Collection, C.Element == (label: Swift.String?, value: Any)>
 
 Protocol SIMDScalar has generic signature change from <Self == Self.SIMD16Storage.Scalar, Self.SIMD16Storage : Swift.SIMDStorage, Self.SIMD2Storage : Swift.SIMDStorage, Self.SIMD32Storage : Swift.SIMDStorage, Self.SIMD4Storage : Swift.SIMDStorage, Self.SIMD64Storage : Swift.SIMDStorage, Self.SIMD8Storage : Swift.SIMDStorage, Self.SIMDMaskScalar : Swift.FixedWidthInteger, Self.SIMDMaskScalar : Swift.SIMDScalar, Self.SIMDMaskScalar : Swift.SignedInteger, Self.SIMD16Storage.Scalar == Self.SIMD2Storage.Scalar, Self.SIMD2Storage.Scalar == Self.SIMD32Storage.Scalar, Self.SIMD32Storage.Scalar == Self.SIMD4Storage.Scalar, Self.SIMD4Storage.Scalar == Self.SIMD64Storage.Scalar, Self.SIMD64Storage.Scalar == Self.SIMD8Storage.Scalar> to <Self == Self.SIMD16Storage.Scalar, Self.SIMD16Storage : Swift.SIMDStorage, Self.SIMD2Storage : Swift.SIMDStorage, Self.SIMD32Storage : Swift.SIMDStorage, Self.SIMD4Storage : Swift.SIMDStorage, Self.SIMD64Storage : Swift.SIMDStorage, Self.SIMD8Storage : Swift.SIMDStorage, Self.SIMDMaskScalar : Swift.FixedWidthInteger, Self.SIMDMaskScalar : Swift.SIMDScalar, Self.SIMDMaskScalar : Swift.SignedInteger, Self.SIMDMaskScalar == Self.SIMDMaskScalar.SIMDMaskScalar, Self.SIMD16Storage.Scalar == Self.SIMD2Storage.Scalar, Self.SIMD2Storage.Scalar == Self.SIMD32Storage.Scalar, Self.SIMD32Storage.Scalar == Self.SIMD4Storage.Scalar, Self.SIMD4Storage.Scalar == Self.SIMD64Storage.Scalar, Self.SIMD64Storage.Scalar == Self.SIMD8Storage.Scalar>
+
+// FIXME: `some KeyedEncodingContainerProtocol<Key>`
+// FIXME: `some KeyedDecodingContainerProtocol<Key>`
+Constructor KeyedEncodingContainer.init(_:) has generic signature change from <K, Container where K == Container.Key, Container : Swift.KeyedEncodingContainerProtocol> to <K>
+Constructor KeyedDecodingContainer.init(_:) has generic signature change from <K, Container where K == Container.Key, Container : Swift.KeyedDecodingContainerProtocol> to <K>