swift

fa932e73 - Fix the demangling of sending result types when combined with isolation

Fix the demangling of sending result types when combined with isolation Fixes the immediate problem, but the presence of demangling code in the runtime means that we'll need a follow-up to fix the compiler so that it doesn't try to use the demangler to materialize metadata for function types that have both isolation and a sending result. rdar://142443925