[Concurrency] Fix code completion test given new actor method

Author: ktoso

stdlib/public/Concurrency/Executor.swift

@@ -102,7 +102,7 @@ extension Actor {
   /// of the executor while performing the operation.
   @_alwaysEmitIntoClient
   @available(SwiftStdlib 5.1, *)
-  public nonisolated func withSerialExecutor<T>(_ operation: (any SerialExecutor) throws -> T) rethrows -> T {
+  public nonisolated func withSerialExecutor<T, E: Error>(_ operation: (any SerialExecutor) throws(E) -> T) throws(E) -> T {
     try operation(unsafe unsafeBitCast(self.unownedExecutor, to: (any SerialExecutor).self))
   }
 
@@ -113,7 +113,7 @@ extension Actor {
   /// of the executor while performing the operation.
   @_alwaysEmitIntoClient
   @available(SwiftStdlib 5.1, *)
-  public nonisolated func withSerialExecutor<T>(_ operation: (any SerialExecutor) async throws -> T) async rethrows -> T {
+  public nonisolated func withSerialExecutor<T, E: Error>(_ operation: (any SerialExecutor) async throws(E) -> T) async throws(E) -> T {
     try await operation(unsafe unsafeBitCast(self.unownedExecutor, to: (any SerialExecutor).self))
   }
 }

test/IDE/complete_cache_notrecommended.swift

@@ -32,11 +32,13 @@ func testAsync() async -> Int {
 }
 func testSyncMember(obj: MyActor) -> Int {
     obj.#^MEMBER_IN_SYNC^#
-// MEMBER_IN_SYNC: Begin completions, 9 items
+// MEMBER_IN_SYNC: Begin completions, 11 items
 // MEMBER_IN_SYNC-DAG: Keyword[self]/CurrNominal:          self[#MyActor#];
 // MEMBER_IN_SYNC-DAG: Decl[InstanceMethod]/CurrNominal/TypeRelation[Convertible]: actorMethod()[' async'][#Int#];
 // MEMBER_IN_SYNC-DAG: Decl[InstanceMethod]/CurrNominal/NotRecommended: deprecatedMethod()[' async'][#Void#];
 // MEMBER_IN_SYNC-DAG: Decl[InstanceVar]/CurrNominal:      unownedExecutor[#UnownedSerialExecutor#];
+// MEMBER_IN_SYNC-DAG: Decl[InstanceMethod]/Super/IsSystem: withSerialExecutor({#(operation): (any SerialExecutor) throws -> T##(any SerialExecutor) throws -> T#})[' rethrows'][#T#]; name=withSerialExecutor(:)
+// MEMBER_IN_SYNC-DAG: Decl[InstanceMethod]/Super/IsSystem: withSerialExecutor({#(operation): (any SerialExecutor) async throws -> T##(any SerialExecutor) async throws -> T#})[' async'][' rethrows'][#T#]; name=withSerialExecutor(:)
 // MEMBER_IN_SYNC-DAG: Decl[InstanceMethod]/Super/IsSystem: preconditionIsolated()[#Void#]; name=preconditionIsolated()
 // MEMBER_IN_SYNC-DAG: Decl[InstanceMethod]/Super/IsSystem: preconditionIsolated({#(message): String#})[#Void#]; name=preconditionIsolated(:)
 // MEMBER_IN_SYNC-DAG: Decl[InstanceMethod]/Super/IsSystem: assertIsolated()[#Void#]; name=assertIsolated()
@@ -46,11 +48,13 @@ func testSyncMember(obj: MyActor) -> Int {
 
 func testSyncMember(obj: MyActor) async -> Int {
     obj.#^MEMBER_IN_ASYNC^#
-// MEMBER_IN_ASYNC: Begin completions, 9 items
+// MEMBER_IN_ASYNC: Begin completions, 11 items
 // MEMBER_IN_ASYNC-DAG: Keyword[self]/CurrNominal:          self[#MyActor#];
 // MEMBER_IN_ASYNC-DAG: Decl[InstanceMethod]/CurrNominal/TypeRelation[Convertible]: actorMethod()[' async'][#Int#];
 // MEMBER_IN_ASYNC-DAG: Decl[InstanceMethod]/CurrNominal/NotRecommended: deprecatedMethod()[' async'][#Void#];
 // MEMBER_IN_ASYNC-DAG: Decl[InstanceVar]/CurrNominal:      unownedExecutor[#UnownedSerialExecutor#];
+// MEMBER_IN_ASYNC-DAG: Decl[InstanceMethod]/Super/IsSystem: withSerialExecutor({#(operation): (any SerialExecutor) throws -> T##(any SerialExecutor) throws -> T#})[' rethrows'][#T#]; name=withSerialExecutor(:)
+// MEMBER_IN_ASYNC-DAG: Decl[InstanceMethod]/Super/IsSystem: withSerialExecutor({#(operation): (any SerialExecutor) async throws -> T##(any SerialExecutor) async throws -> T#})[' async'][' rethrows'][#T#]; name=withSerialExecutor(:)
 // MEMBER_IN_ASYNC-DAG: Decl[InstanceMethod]/Super/IsSystem: preconditionIsolated()[#Void#]; name=preconditionIsolated()
 // MEMBER_IN_ASYNC-DAG: Decl[InstanceMethod]/Super/IsSystem: preconditionIsolated({#(message): String#})[#Void#]; name=preconditionIsolated(:)
 // MEMBER_IN_ASYNC-DAG: Decl[InstanceMethod]/Super/IsSystem: assertIsolated()[#Void#]; name=assertIsolated()