[NFC] Fix IDE tests for @Sendable inference change.

(cherry picked from commit e1c3781)

Author: hborla

test/IDE/print_clang_objc_async.swift

@@ -90,7 +90,7 @@ import _Concurrency
 // CHECK: func __leap(_ height: Int) async -> String
 
 // CHECK: @available(*, renamed: "runOnMainThread()")
-// CHECK-NEXT: func runOnMainThread(completionHandler completion: (@MainActor (String) -> Void)? = nil)
+// CHECK-NEXT: func runOnMainThread(completionHandler completion: (@MainActor @Sendable (String) -> Void)? = nil)
 // CHECK-NEXT: @discardableResult
 // CHECK-NEXT: func runOnMainThread() async -> String
 

test/IDE/print_clang_objc_effectful_properties.swift

@@ -33,11 +33,11 @@
 // CHECK-NEXT:  var fromNullableHandler: String { get async }
 
 // CHECK:       @available(*, renamed: "getter:mainDogProp()")
-// CHECK-NEXT:  func getMainDog(_ completion: @escaping @MainActor (String) -> Void)
+// CHECK-NEXT:  func getMainDog(_ completion: @escaping @MainActor @Sendable (String) -> Void)
 // CHECK-NEXT:  var mainDogProp: String { get async }
 
 // CHECK:       @available(*, renamed: "regularMainDog()")
-// CHECK-NEXT:  func regularMainDog(_ completion: @escaping @MainActor (String) -> Void)
+// CHECK-NEXT:  func regularMainDog(_ completion: @escaping @MainActor @Sendable (String) -> Void)
 // CHECK-NEXT:  @discardableResult
 // CHECK-NEXT:  func regularMainDog() async -> String
 // CHECK: }