Brummel
5e653ff536
Three Minor items from the ct.1.5a quality review: 1. normalize_type_for_registry now recurses into Type::Forall.constraints[].type_, symmetric to walk_type. Closes a latent gap: a Forall with bare cross-module constraint types reaching the registry would have produced a key disagreeing with the qualified form. RED test: ct1_5a_normalize_recurses_into_forall_constraints. 2. Documented the bare-name limitation on Registry::type_def_module: two modules each defining 'type Foo' collide at insert; the proper fix (re-key as (owning_module, bare_name)) is out of ct.1's scope. 3. Removed the four iter-tag explanatory paragraphs at the normalize_type_for_lookup call sites (check/lib.rs check_fn, mono.rs three sites). Replaced each with a one-line pointer to the helper's docstring per project comment policy.