redundant error position, to ensure the message is attached somewhere, despite the distortion of positions due to glued tokens;
redundant error position, to ensure the message is attached somewhere, despite the distortion of positions due to glued tokens;

MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle