I got to get offline right now so this is just a quick note for something I just noticed rather than a full bug report (since it may be a high priority to someone - though it may already have been noticed)
In PharoLauncher #400, Pharo #30438, trying to add an instance variable to the PharoLauncher class generates a MNU SpecLayout>>hasSlots.
got to head off,
cheers -ben