Description:
------------
Why new domDocument reset my error?

Test script:
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<?php

print_r('before<br>');
trigger_error('error');
print_r(error_get_last());
$xml = new DOMDocument('1.0', 'UTF-8');

echo '<br><br><br>';

print_r('after<br>');
trigger_error('error');
$xml = new DOMDocument('1.0', 'UTF-8');
print_r(error_get_last());

?>

Expected result:
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see both errors

Actual result:
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only see before