Joseph Ferano
e0aedadd74
test/programs/maps.flan is seven claims over the Map, each one a plausible wrong version gets wrong, with the numbers differing per failure so a single wrong answer names its own cause: an integer key past eight grows, a struct key whose padding must never be hashed, a struct key holding a string, an enum key, clone's independence, upsert not growing the length, and a map living in an arena. The move refusal said "a Vec is move-only" whatever had been moved, so moving a Map was reported as a fact about Vecs. It names the type now.
