add mangling test for non-def-dist-actor

Author: ktoso

test/Distributed/SIL/distributed_actor_initialize_nondefault.swift

@@ -18,6 +18,7 @@ distributed actor MyDistActor {
         return MainActor.sharedUnownedExecutor
     }
 
+// // MyDistActor.init(actorSystem:)
 // CHECK: sil hidden @$s14default_deinit11MyDistActorC11actorSystemAC015FakeDistributedE7Systems0h9RoundtripeG0C_tcfc : $@convention(method) (@owned FakeRoundtripActorSystem, @owned MyDistActor) -> @owned MyDistActor
 // CHECK-NOT: [[BAD:%[0-9]+]] = builtin "initializeDefaultActor"(%1 : $MyDistActor) : $()
 // CHECK: [[ACTOR_INSTANCE:%[0-9]+]] = builtin "initializeNonDefaultDistributedActor"(%1 : $MyDistActor) : $()

test/Runtime/demangleToMetadata.swift

@@ -275,7 +275,7 @@ DemangleToMetadataTests.test("demangle built-in types") {
   expectEqual(Builtin.RawUnsafeContinuation.self, _typeByName("Bc")!)
   expectEqual(Builtin.Executor.self, _typeByName("Be")!)
   expectNotNil(_typeByName("BD"))
-  // FIXME: !!!! test for Bd
+  expectNotNil(_typeByName("Bd")) // NonDefaultDistributedActor storage
   expectEqual(Builtin.Job.self, _typeByName("Bj")!)
 }