  x Invalid character of processing instruction
   ,-[$DIR/tests/recovery/pi/bad-pi-4/input.xml:1:1]
 1 | <? xml version='1.0'
   :   ^
   `----
  x Eof in processing instruction
   ,-[$DIR/tests/recovery/pi/bad-pi-4/input.xml:1:1]
 1 | <? xml version='1.0'
   `----
  x Unexpected end of file in start phase
   ,-[$DIR/tests/recovery/pi/bad-pi-4/input.xml:1:1]
 1 | <? xml version='1.0'
   `----
