[svn r209] Fixed: exotic array to pointer casts were broken.

Changed: classes now have opaque vtables.

ir/irtype.cpp

@@ -21,7 +21,9 @@ IrType::IrType(const IrType& s)
 {
     assert(list.insert(this).second);
     type = s.type;
+#if OPAQUE_VTBLS
     vtblType = s.type;
+#endif
 }
 
 IrType::~IrType()
@@ -32,5 +34,7 @@ IrType::~IrType()
 void IrType::reset()
 {
     type = NULL;
+#if OPAQUE_VTBLS
     vtblType = NULL;
+#endif
 }