Bug 280236 coercing an array containing an nsXPCConstructor to a string results in an uncatchable error

thanks to bent.mozilla@gmail.com and aus@noiseport.org for help pushing this along
r=jst sr=jst

bad merge

js/src/xpconnect/src/xpcprivate.h

@@ -2099,7 +2099,6 @@ private:
 
 public:
     nsCOMPtr<nsIThread>          mThread; // Don't want to overload _mOwningThread
-#endif
 };
 
 /***************************************************************************