swift

deec3e1c - [SE-0470] Warn about isolated conformance to SendableMetatype-inheriting protocol

[SE-0470] Warn about isolated conformance to SendableMetatype-inheriting protocol An isolated conformance to a SendableMetatype-inheriting protocol cannot actually be used in generic code, because the SendableMetatype requirement itself prevents it. Warn about this case so folks aren't surprised at runtime. This is a part of issue #82550 / rdar://154437489.