add execution test for ObjC-imported effectful properties

Author: kavon

test/Concurrency/Runtime/Inputs/objc_async.h

@@ -7,3 +7,13 @@
 - (void)butt:(NSInteger)x completionHandler:(void (^ _Nonnull)(NSInteger))handler;
 
 @end
+
+@interface Farm: NSObject
+
+-(void)getDogWithCompletion:(void (^ _Nonnull)(NSInteger))completionHandler
+  __attribute__((swift_async_name("getter:doggo()")));
+
+-(void)obtainCat:(void (^ _Nonnull)(NSInteger, NSError* _Nullable))completionHandler
+__attribute__((swift_async_name("getter:catto()")));
+
+@end

test/Concurrency/Runtime/Inputs/objc_async.m

@@ -13,3 +13,17 @@ - (void)butt:(NSInteger)x completionHandler:(void (^)(NSInteger))handler {
 }
 
 @end
+
+@implementation Farm
+
+-(void)getDogWithCompletion:(void (^ _Nonnull)(NSInteger))completionHandler {
+  printf("getting dog\n");
+  completionHandler(123);
+}
+
+-(void)obtainCat:(void (^ _Nonnull)(NSInteger, NSError* _Nullable))completionHandler {
+  printf("obtaining cat has failed!\n");
+  completionHandler(nil, [NSError errorWithDomain:@"obtainCat" code:456 userInfo:nil]);
+}
+
+@end

test/Concurrency/Runtime/objc_async.swift

@@ -10,13 +10,35 @@
 // rdar://76038845
 // UNSUPPORTED: use_os_stdlib
 
-@main struct Main {
-  static func main() async {
+func buttTest() async {
   let butt = Butt()
   let result = await butt.butt(1738)
   print("finishing \(result)")
+}
+
+func farmTest() async {
+  let farm = Farm()
+  let dogNumber = await farm.doggo
+  print("dog number = \(dogNumber)")
+  do {
+    let _ = try await farm.catto
+  } catch {
+    print("caught exception")
   }
 }
 
-// CHECK: starting 1738
-// CHECK-NEXT: finishing 679
+@main struct Main {
+  static func main() async {
+    // CHECK: starting 1738
+    // CHECK-NEXT: finishing 679
+    await buttTest()
+
+    // CHECK-NEXT: getting dog
+    // CHECK-NEXT: dog number = 123
+    // CHECK-NEXT: obtaining cat has failed!
+    // CHECK-NEXT: caught exception
+    await farmTest()
+  }
+}
+
+