tostring          302 lib/lua/lvm.c      if (!(ttisstring(top-2) || ttisnumber(top-2)) || !tostring(L, top-1)) {
tostring          306 lib/lua/lvm.c        (void)tostring(L, top - 2);  /* result is first op (as string) */
tostring          313 lib/lua/lvm.c        for (n = 1; n < total && tostring(L, top-n-1); n++) {