Handle on-trace OOM errors from helper functions.

src/lj_state.c

@@ -156,6 +156,7 @@ static TValue *cpluaopen(lua_State *L, lua_CFunction dummy, void *ud)
   fixstring(lj_err_str(L, LJ_ERR_ERRMEM));  /* Preallocate memory error msg. */
   g->gc.threshold = 4*g->gc.total;
   lj_trace_initstate(g);
+  lj_err_verify();
   return NULL;
 }