Make more atomic install tests use mirror builders. Add tests for conflict checks.
Goodbye, MixinRep. Foundation for sharing more of the supramethod compiler between targets and for mirror builders respecting object encapsulation.
Make V8 IR more like Squeak IR.
Refactor grammar to make the access modifier part of the class header.
Fix copying nested classes.
Fix MemoryHole dropping class access modifier on load from repository.
Restore some class access modifiers.