[System.Private.CoreLib] Merge fixes

Commit migrated from https://github.com/mono/mono/commit/d44da802a9cc7317218bce4dd1565470f4fc3431

diff --git a/src/mono/netcore/System.Private.CoreLib/src/System/RuntimeType.cs b/src/mono/netcore/System.Private.CoreLib/src/System/RuntimeType.cs
index 6e01c1c..572dea8 100644 (file)
--- a/src/mono/netcore/System.Private.CoreLib/src/System/RuntimeType.cs
+++ b/src/mono/netcore/System.Private.CoreLib/src/System/RuntimeType.cs
@@ -2551,6 +2551,12 @@ namespace System
                        }
                }
 
+               internal override bool IsUserType {
+                       get {
+                               return false;
+                       }
+               }
+
                public override bool IsSubclassOf(Type type)
                {
                        if ((object)type == null)