Brummel
73965a6cbd
Four new E2E tests in typeclass_22b2.rs covering invariants the per-task fixtures (all single-module, single-fn) did not exercise: - cross_module_class_method_resolves_and_fires_no_instance: module B's call to `show` (declared in module A) reaches the no-instance arm, proving Env.class_methods is merged workspace- wide and not restricted to the local module. - cross_module_polymorphic_fn_without_constraint_fires_missing_constraint: same merge guarantees the missing-constraint arm sees the residual produced by a call to A's class method from inside B. - cross_module_instance_satisfies_concrete_call: the workspace registry built at load time over all modules must populate keys visible from B; a concrete call resolves clean cross-module. - two_fns_each_missing_constraint_produce_two_diagnostics: pins check_in_workspace's per-def aggregation — two ill-formed fns produce two diagnostics (one per fn), not one. Six new fixtures (xmod_* trio + two_fns_*).