Add ObjC interface test for effectful property imports

Author: kavon

test/IDE/print_clang_objc_effectful_properties.swift

@@ -0,0 +1,39 @@
+// RUN: %empty-directory(%t)
+
+// RUN: %target-swift-ide-test(mock-sdk: %clang-importer-sdk) -print-module -source-filename %s -module-to-print=EffectfulProperties -function-definitions=false -enable-experimental-concurrency > %t/EffectfulProperties.printed.txt
+// RUN: %FileCheck -input-file %t/EffectfulProperties.printed.txt %s
+
+// REQUIRES: objc_interop
+// REQUIRES: concurrency
+
+// CHECK-LABEL: class EffProps : NSObject {
+// CHECK:  func getDogWithCompletion(_ completionHandler: @escaping (NSObject) -> Void)
+// CHECK:  var doggo: NSObject { get async }
+
+// CHECK:       func obtainCat(_ completionHandler: @escaping (NSObject?, Error?) -> Void)
+// CHECK-NEXT:  var catto: NSObject? { get async throws }
+
+// CHECK:       func checkAvailability(completionHandler: @escaping (Bool) -> Void)
+// CHECK-NEXT:  var available: Bool { get async }
+// CHECK-NEXT:  @available(swift, obsoleted: 3, renamed: "checkAvailability(completionHandler:)")
+// CHECK-NEXT:  func checkAvailabilityWithCompletionHandler(_ completionHandler: @escaping (Bool) -> Void)
+
+// CHECK:       func returnNothing(completion completionHandler: @escaping () -> Void)
+// CHECK-NEXT:  var touch: Void { get async }
+// CHECK-NEXT:  @available(swift, obsoleted: 3, renamed: "returnNothing(completion:)")
+// CHECK-NEXT:  func returnNothingWithCompletion(_ completionHandler: @escaping () -> Void)
+
+// CHECK:       func nullableHandler(_ completion: ((String) -> Void)? = nil)
+// CHECK-NEXT:  var fromNullableHandler: String { get async }
+
+// CHECK:  func getMainDog(_ completion: @escaping @MainActor (String) -> Void)
+// CHECK-NEXT:  var mainDogProp: String { get async }
+
+// CHECK:  @completionHandlerAsync("regularMainDog()", completionHandleIndex: 0)
+// CHECK-NEXT:  func regularMainDog(_ completion: @escaping @MainActor (String) -> Void)
+// CHECK-NEXT:  func regularMainDog() async -> String
+// CHECK: }
+
+// CHECK-LABEL: class NotEffProps : NSObject {
+// CHECK-NOT: var
+// CHECK: func EffPropGetDogWithCompletion(_ s: OpaquePointer, _ myBlock: @escaping (NSObject) -> Void) -> Double