Segfault in PHP_5_0 and HEAD

The following code from PHPUnit2 causes a segfault with PHP_5_0 and
HEAD.

public function run(PHPUnit2_Framework_Test $test) {
    $this->currentTest = $test;
    $this->startTest($test);

    set_error_handler(array($this, 'errorHandler'));

    try {
        $test->runBare();
    }

    catch (PHPUnit2_Framework_AssertionFailedError $e) {
        $this->addFailure($test, $e);
    }

    catch (Exception $e) {
        $this->addError($test, $e);
    }

    `restore_error_handler()`;

    $this->endTest($test);
    $this->currentTest = NULL;
}

public function errorHandler($code, $message) {
    $this->errors[] = new PHPUnit2_Framework_TestFailure(
      $this->currentTest,
      new Exception($message, $code)
    );
}

The segfault is triggered by the one line in the body of the
errorHandler() method.

As with most segfaults I discover while working on PHPUnit2 I could not
reproduce it with a small standalone script.

--
Sebastian Bergmann http://www.sebastian-bergmann.de/
GnuPG Key: 0xB85B5D69 / 27A7 2B14 09E4 98CD 6277 0E5B 6867 C514 B85B 5D69