I've attached two testcases, which both fail on TOT. One problem is that syntax errors return with a line number that's relative to the current parsing unit instead of the current file. One step toward fixing this would be to change the && test to an || test in setExceptionDetailsIfNeeded. That would cause exception information for syntax errors to be (re)set by the enclosing node. But that really just begs the question of why we set the information incorrectly to begin with. So I think a better solution would be to change our code so that it only sets the information if it has valid data with which to do so.