Description:
------------
Test cases 
   Test stream_isatty with redirected STDERR [tests/output/stream_isatty_err.phpt]
   Test stream_isatty with redirected STDIN/STDERR [tests/output/stream_isatty_in-err.phpt]
   Test stream_isatty with redirected STDIN/STDOUT [tests/output/stream_isatty_in-out.phpt]
   Test stream_isatty with redirected STDOUT [tests/output/stream_isatty_out.phpt]
   Test stream_isatty with redirected STDOUT/STDERR [tests/output/stream_isatty_out-err.phpt]
Failed on s390x. 

Test script:
---------------
Here is sample php code:

<?php

       $closeMe = fopen(__FILE__, 'rb');
       $tmp=stream_isatty($closeMe);
       echo "closeme=$closeMe, stream_isatty=$tmp+\n";
       echo "closeMe:"; var_dump(stream_isatty($closeMe));


gdb sapi/cli/php 
(gdb) b zif_stream_isatty
(gdb) r case/sample.php
...
1651            RETVAL_BOOL(isatty(fileno));
(gdb) p fileno
$1 = 34359718632 
(gdb) x /8b &fileno
0x3ffffffb360:  0       0       0       7       -1      -1      -78     -24

Seems the last 4 bytes of "fileno" wrong on s390x (Big_Endian)