Description:
------------
Attached code crashes on PHP trunk debug build (64 bit). Looks like a null pointer deref, so I assume it's not security related.

Test script:
---------------
<?php
/* Prototype  : array get_html_translation_table ( [int $table [, int $quote_style [, string charset_hint]]] )
*/
$tt = get_html_translation_table(acos(1.01), $quote_style, "UTF-8");
?>

Expected result:
----------------
==23063== Invalid read of size 8
==23063==    at 0x6AFEEE: zif_get_html_translation_table (html.c:1625)
==23063==    by 0x7ED653: zend_do_fcall_common_helper_SPEC (zend_vm_execute.h:638)
==23063==    by 0x7F37D2: ZEND_DO_FCALL_SPEC_CONST_HANDLER (zend_vm_execute.h:1935)
==23063==    by 0x7EC127: execute (zend_vm_execute.h:410)
==23063==    by 0x7B0348: zend_execute_scripts (zend.c:1212)
==23063==    by 0x726A6B: php_execute_script (main.c:2344)
==23063==    by 0x8EC489: main (php_cli.c:1136)
==23063==  Address 0x0 is not stack'd, malloc'd or (recently) free'd
==23063== 
==23063== 
==23063== Process terminating with default action of signal 11 (SIGSEGV)