svoid test_parseECJOutputForErrors() {
  S text = unindentMLS([[
    ----------
    1. ERROR in /home/stefan/JavaX-Caches/Temp/1642773472353/UserCode_1642773470538.java (at line 26)
      xg.fillRect(10, 10, 10, 10);
      ^^
    xg cannot be resolved
    ----------
  ]];
  
  var errors = parseECJOutputForErrors(text);
  assertEqualsVerbose(1, l(errors));
  assertEqualsVerbose("xg cannot be resolved", first(errors).error);
  assertEqualsVerbose(26, first(errors).lineNr);
  assertEqualsVerbose(intRange(3, 5), first(errors).colRange);
}

Began life as a copy of #1034084