swift

7cad2312 - [Concurrency] Actor cannot conform to global actor isolated protocol

[Concurrency] Actor cannot conform to global actor isolated protocol Attempting to conform an actor to a global actor isolated protocol creates a clash in isolation when members are accessed so, let's detect and diagnose that. Resolves: rdar://75849035 (cherry picked from commit ecfff76552590a2fb03736d7201cde28b956504e)