php-src/tests/lang/038.phpt fails on php-5.0.3

Hi All, php-src/tests/lang/038.phpt(Convert warnings to exceptions) this testcase used to succeed in php-5.0.2 and old but not on php-5.0.3. Seems that exception_object->getTrace() now returns an array of size 3 with first 2 entries corresponding to Error2Exception and last one corresponding to fopen. Earlier this used to return array of size 2. Changing the var_dump($trace[1]['function']); to var_dump($trace[2]['function']); will make the testcase go through. Still I am interested in knowing the reason behind three entries in getTrace() return value. With regards Kamesh Jayachandran