- Make proxy manager use IMultiQI instead of IInternalUnknown as tests
  show that IInternalUnknown isn't exposed.
- Implement IMultiQI on top of IRemUnknown calls.
- Silence some fixmes that occur during tests and don't give us any
  useful information.
- Fix typo in class factory proxy that caused us to use the wrong
  offset into the CFProxy structure, causing us to not call the
  outer_unknown properly.

diff --git a/dlls/ole32/compobj_private.h b/dlls/ole32/compobj_private.h
index 6b7686b..69af30a 100644
--- a/dlls/ole32/compobj_private.h
+++ b/dlls/ole32/compobj_private.h
@@ -100,7 +100,7 @@
 /* imported object / proxy manager */
 struct proxy_manager
 {
-  const IInternalUnknownVtbl *lpVtbl;
+  const IMultiQIVtbl *lpVtbl;
   struct apartment *parent; /* owning apartment (RO) */
   struct list entry;        /* entry in apartment (CS parent->cs) */
   LPRPCCHANNELBUFFER chan;  /* channel to object (CS cs) */