mangling changed in multiple systems test

Author: ktoso

test/Distributed/Runtime/distributed_actor_remoteCall_protocol_method_in_presence_of_multiple_systems.swift

@@ -70,8 +70,9 @@ distributed actor Feeder: FeederProtocol {
     // CHECK-NEXT: > encode generic sub: main.$GreeterProtocol<main.FakeRoundtripActorSystem>
     // CHECK-NEXT: > encode return type: Swift.String
     // CHECK-NEXT: > done recording
-    // CHECK-NEXT: >> remoteCall: on:main.$GreeterProtocol<main.FakeRoundtripActorSystem>, target:main.$GreeterProtocol.greet(), invocation:FakeInvocationEncoder(genericSubs: [main.$GreeterProtocol<main.FakeRoundtripActorSystem>]
-    // CHECK-NEXT: > execute distributed target: main.$GreeterProtocol.greet(), identifier: $s4main16$GreeterProtocolC5greetSSyYaKAA0bC0RzlFTE
+    // CHECK-NEXT: >> remoteCall: on:main.$GreeterProtocol<main.FakeRoundtripActorSystem>, target:main.$GreeterProtocol.greet(), invocation:FakeInvocationEncoder(genericSubs: [main.$GreeterProtocol<main.FakeRoundtripActorSystem>], arguments: [], returnType: Optional(Swift.String), errorType: nil), throwing:Swift.Never, returning:Swift.String
+    // CHECK-NEXT: > execute distributed target: main.$GreeterProtocol.greet(), identifier: $s4main16$GreeterProtocolC5greetSSyYaKFTE
+    // FIXME: was: > execute distributed target: main.$GreeterProtocol.greet(), identifier: $s4main16$GreeterProtocolC5greetSSyYaKAA0bC0RzlFTE
     // Notes:
     // - The call is made on the stub: $GreeterProtocol
     // - the record is name is 'HF' for the accessible function