Imported Upstream version 4.8.0.459

Former-commit-id: 2a5b9df2014f72665850c7f885e7aed54704a53a

mcs/class/corlib/Test/System.Runtime.InteropServices/MarshalTest.cs

@@ -823,6 +823,7 @@ namespace MonoTests.System.Runtime.InteropServices
 		);
 #endif
 
+#if !MOBILE_STATIC
 		[StructLayout( LayoutKind.Sequential, Pack = 1 )]
 		public class FourByteStruct
 		{
@@ -967,6 +968,7 @@ namespace MonoTests.System.Runtime.InteropServices
 
 			return objResult;
 		}
+#endif
 	}
 #if !MOBILE
 	[ComImport()]

mcs/class/corlib/Test/System.Security/HostSecurityManagerTest.cs

@@ -28,7 +28,7 @@
 //
 
 // MOBILE profile lacks some (of the few) CAS features required to execute those tests
-#if !MOBILE
+#if !MOBILE && !MONOMAC
 
 using NUnit.Framework;
 using System;

mcs/class/corlib/Test/System.Security/SecurityManagerTest.cs

@@ -93,7 +93,7 @@ namespace MonoTests.System.Security {
 			Assert.IsNotNull (e, "PolicyHierarchy");
 		}
 
-#if !MOBILE
+#if !MOBILE && !MONOMAC
 		private void ResolveEvidenceHost (SecurityZone zone, bool unrestricted, bool empty)
 		{
 			string prefix = zone.ToString () + "-";

mcs/class/corlib/Test/System.Threading.Tasks/TaskFactoryTest.cs

@@ -448,6 +448,7 @@ namespace MonoTests.System.Threading.Tasks
 		}
 
 		[Test]
+		[Category ("MacNotWorking")] // Randomly fails - https://bugzilla.xamarin.com/show_bug.cgi?id=51255
 		public void FromAsync_Completed ()
 		{
 			var completed = new CompletedAsyncResult ();
@@ -571,6 +572,7 @@ namespace MonoTests.System.Threading.Tasks
 		}
 
 		[Test]
+		[Category ("MacNotWorking")] // Randomly fails - https://bugzilla.xamarin.com/show_bug.cgi?id=51255
 		public void FromAsync_BeginCallback ()
 		{
 			bool called = false;

mcs/class/corlib/Test/System/ActivatorTest.cs

@@ -513,7 +513,7 @@ namespace MonoTests.System {
 						  null, null);
 		}
 
-#if !MONOTOUCH && !MOBILE_STATIC
+#if !MONOTOUCH && !MOBILE_STATIC && !MONOMAC
 		[Test]
 		public void CreateInstanceCustomDomain ()
 		{

mcs/class/corlib/Test/System/AppDomainTest.cs.REMOVED.git-id

@@ -1 +1 @@
-34874b1f81f0bae8977486ef067eec0eceac7e71
+61e6a764534426216122856dba783860e8915efe

mcs/class/corlib/Test/System/TypeTest.cs.REMOVED.git-id

@@ -1 +1 @@
-e275634bc2c909abbe355a3fe2f75b1a08b25558
+3b59d6b952aa1995bae24cea0f13675747fc7848