Description:
------------
found in the debian build, but i can reproduce it on an pristine snapshot.  see also: #45877, #48254 for background, though these are reported as fixed (regression maybe?).

it seems that the last array item is being ignored instead of being converted into a string key.

rangda[/home/sean/Download/php5.3-201002160730] ./run-tests.php --show-all -p ./sapi/cli/php ./Zend/tests/bug45877.phpt

=====================================================================
PHP         : ./sapi/cli/php 
PHP_SAPI    : cli
PHP_VERSION : 5.3.3-dev
ZEND_VERSION: 2.3.0
PHP_OS      : Linux - Linux rangda 2.6.32-trunk-amd64 #1 SMP Sun Jan 10 22:40:40 UTC 2010 x86_64
INI actual  : /home/sean/Download/php5.3-201002160730
More .INIs  :  
CWD         : /home/sean/Download/php5.3-201002160730
Extra dirs  : 
VALGRIND    : Not used
=====================================================================
Running selected tests.
TEST 1/1 [Zend/tests/bug45877.phpt]
========TEST========
<?php
$keys = array(PHP_INT_MAX,
	(string) PHP_INT_MAX,
	(string) (-PHP_INT_MAX - 1),
	-PHP_INT_MAX - 1,
	(string) (PHP_INT_MAX + 1));

var_dump(array_fill_keys($keys, 1));
?>
========DONE========

========OUT========
array(2) {
  [9223372036854775807]=>
  int(1)
  [-9223372036854775808]=>
  int(1)
}
========DONE========

========EXP========
array(3) {
  [%d7]=>
  int(1)
  [-%d8]=>
  int(1)
  ["%d8"]=>
  int(1)
}
========DONE========

========DIFF========
001+ array(2) {
001- array(3) {
006-   ["%d8"]=>
007-   int(1)
========DONE========
FAIL Bug #45877 (Array key '2147483647' left as string) [Zend/tests/bug45877.phpt] 
=====================================================================
Number of tests :    1                 1
Tests skipped   :    0 (  0.0%) --------
Tests warned    :    0 (  0.0%) (  0.0%)
Tests failed    :    1 (100.0%) (100.0%)
Expected fail   :    0 (  0.0%) (  0.0%)
Tests passed    :    0 (  0.0%) (  0.0%)
---------------------------------------------------------------------
Time taken      :    0 seconds
=====================================================================

=====================================================================
FAILED TEST SUMMARY
---------------------------------------------------------------------
Bug #45877 (Array key '2147483647' left as string) [Zend/tests/bug45877.phpt]
=====================================================================


Reproduce code:
---------------
./Zend/tests/bug45877.phpt

Expected result:
----------------
PASS

Actual result:
--------------
FAIL