Backed out changeset 94fb66d82988 (bug 877584)

js/xpconnect/src/XPCJSRuntime.cpp

@@ -368,13 +368,11 @@ XPCJSRuntime::RemoveJSHolder(void* aHolder)
     }
 }
 
-#ifdef DEBUG
 bool
 XPCJSRuntime::TestJSHolder(void* aHolder)
 {
     return mJSHolders.Get(aHolder, nullptr);
 }
-#endif
 
 // static
 void XPCJSRuntime::TraceBlackJS(JSTracer* trc, void* data)