[monotouch-test] Attempt to fix monotouch-tests on macOS 10.15. (#14520)

tests/monotouch-test/HealthKit/CdaDocumentSampleTest.cs

@@ -37,7 +37,11 @@ namespace MonoTouchFixtures.HealthKit {
 						Assert.That (details.ValidationError.Length, Is.EqualTo ((nint) 0), "Length");
 					}
 				};
+#if __MACCATALYST__
+				var throwsException = TestRuntime.CheckXcodeVersion (12, 0);
+#else
 				var throwsException = TestRuntime.CheckXcodeVersion (11, 0);
+#endif
 
 				if (throwsException) {
 #if NET

tests/monotouch-test/MediaAccessibility/ImageCaptioningTest.cs

@@ -95,11 +95,7 @@ namespace MonoTouchFixtures.MediaAccessibility {
 					Assert.Null (e, "ro / set / no error"); // weird, it can't be saved back to the file metadata
 
 					var s = MAImageCaptioning.GetCaption (url, out e);
-#if __MACCATALYST__
-					if (true) {
-#else
 					if (TestRuntime.CheckXcodeVersion (12, TestRuntime.MinorXcode12APIMismatch)) {
-#endif
 						Assert.AreEqual ("xamarin", s, "ro / roundtrip 2");
 					} else {
 						Assert.Null (s, "ro / roundtrip 3"); // not very surprising since Set can't save it
@@ -108,11 +104,7 @@ namespace MonoTouchFixtures.MediaAccessibility {
 
 					Assert.True (MAImageCaptioning.SetCaption (url, "xamarin", out e), "Set 2");
 					s = MAImageCaptioning.GetCaption (url, out e);
-#if __MACCATALYST__
-					if (true) {
-#else
 					if (TestRuntime.CheckXcodeVersion (12, TestRuntime.MinorXcode12APIMismatch)) {
-#endif
 						Assert.AreEqual ("xamarin", s, "ro / back to original");
 					} else {
 						Assert.Null (s, "ro / back to original");
@@ -135,11 +127,7 @@ namespace MonoTouchFixtures.MediaAccessibility {
 				Assert.Null (e, "rw / set / no error"); // weird, it can't be saved back to the file metadata
 
 				var s = MAImageCaptioning.GetCaption (rw_url, out e);
-#if __MACCATALYST__
-					if (true) {
-#else
 				if (TestRuntime.CheckXcodeVersion (12, TestRuntime.MinorXcode12APIMismatch)) {
-#endif
 					Assert.AreEqual ("xamarin", s, "rw / roundtrip"); // :)
 				} else {
 					Assert.Null (s, "rw / roundtrip"); // :(
@@ -148,11 +136,7 @@ namespace MonoTouchFixtures.MediaAccessibility {
 
 				Assert.True (MAImageCaptioning.SetCaption (rw_url, "xamarin", out e), "Set 2");
 				s = MAImageCaptioning.GetCaption (rw_url, out e);
-#if __MACCATALYST__
-					if (true) {
-#else
 				if (TestRuntime.CheckXcodeVersion (12, TestRuntime.MinorXcode12APIMismatch)) {
-#endif
 					Assert.AreEqual ("xamarin", s, "rw / back to original");
 				} else {
 					Assert.Null (s, "rw / back to original");