Skip checking COM objects on AOT (#1662)

* Minor optimization in 'VtableEntries'

* Minor tweak to 'IsRuntimeImplementedRCW'

src/WinRT.Runtime/ComWrappersSupport.net5.cs

@@ -572,6 +572,13 @@ static unsafe DefaultComWrappers()
 
  private static unsafe bool IsRuntimeImplementedRCW(Type objType)
  {
+ // Built-in COM interop isn't supported in AOT environments,
+ // so this method can only ever return false. Just inline it.
+ if (!RuntimeFeature.IsDynamicCodeCompiled)
+ {
+ return false;
+ }
+
  bool isRcw = objType.IsCOMObject;
  if (objType.IsGenericType)
  {
@@ -692,10 +699,9 @@ public VtableEntries()
  public VtableEntries(List<ComInterfaceEntry> entries, Type type)
  {
  Data = (ComInterfaceEntry*)RuntimeHelpers.AllocateTypeAssociatedMemory(type, sizeof(ComInterfaceEntry) * entries.Count);
- for (int i = 0; i < entries.Count; i++)
- {
- Data[i] = entries[i];
- }
+
+ CollectionsMarshal.AsSpan(entries).CopyTo(new Span<ComInterfaceEntry>(Data, entries.Count));
+
  Count = entries.Count;
  }
  }