Description:
------------
When build with --enable-dtrace, some test in Zend/test/arg_unpack

Test script:
---------------
make test  TESTS=Zend/tests/arg_unpack

Expected result:
----------------
With ./configure --disable-all --enable-debug

Tests failed    :    0 (  0.0%) (  0.0%)


Actual result:
--------------
With ./configure --disable-all --enable-debug --enable-dtrace

Tests failed    :    2 ( 16.7%) ( 16.7%)
=====================================================================
FAILED TEST SUMMARY
---------------------------------------------------------------------
Argument unpacking with internal functions [Zend/tests/arg_unpack/internal.phpt]
Argument unpacking does not work with string keys (forward compatibility for named args) [Zend/tests/arg_unpack/string_keys.phpt]
=====================================================================

$ cat Zend/tests/arg_unpack/internal.out
Warning: array_map() expects at least 2 parameters, 1 given in /dev/shm/php-5.6.0beta4/Zend/tests/arg_unpack/internal.php on line 8
NULL

$ cat Zend/tests/arg_unpack/string_keys.out
string(36) "Cannot unpack array with string keys"
string(48) "var_dump() expects at least 1 parameter, 0 given"
string(42) "Cannot unpack Traversable with string keys"
string(48) "var_dump() expects at least 1 parameter, 0 given"