Disable COM interop for WinRT types

Author: janvorli

src/System.Private.CoreLib/Resources/Strings.resx

@@ -2884,6 +2884,9 @@
   <data name="NotSupported_CollectibleBoundNonCollectible" xml:space="preserve">
     <value>A non-collectible assembly may not reference a collectible assembly.</value>
   </data>
+  <data name="NotSupported_CollectibleWinRT" xml:space="preserve">
+    <value>WinRT Interop is not supported for collectible types.</value>
+  </data>
   <data name="NotSupported_CreateInstanceWithTypeBuilder" xml:space="preserve">
     <value>CreateInstance cannot be used with an object of type TypeBuilder.</value>
   </data>

src/vm/ceeload.cpp

@@ -837,6 +837,12 @@ BOOL Module::CanCacheWinRTTypeByGuid(MethodTable *pMT)
     }
     CONTRACTL_END;
 
+    // Don't cache WinRT types in collectible modules.
+    if (IsCollectible())
+    {
+        return FALSE;
+    }
+
     // Don't cache mscorlib-internal declarations of WinRT types.
     if (IsSystem() && pMT->IsProjectedFromWinRT())
         return FALSE;

src/vm/interoputil.cpp

@@ -5161,6 +5161,14 @@ ClassFactoryBase *GetComClassFactory(MethodTable* pClassMT)
 
     if (pClsFac == NULL)
     {
+        //
+        // Collectible types do not support WinRT interop
+        //
+        if (pClassMT->IsExportedToWinRT() || pClassMT->IsProjectedFromWinRT())
+        {
+            COMPlusThrow(kNotSupportedException, W("NotSupported_CollectibleWinRT"));
+        }
+
         NewHolder<ClassFactoryBase> pNewFactory;
 
         if (pClassMT->IsExportedToWinRT())