24.2 plan-recon surfaced a spec-gap: adding `class Show` to the prelude
would collide with the user-class `Show` declared by 14 test fixtures
under examples/test_22b{1,2,3}_*.ail.json (plus hardcoded "Show" /
"show" assertions in crates/ail/tests/typeclass_22b{2,3}.rs) through
the workspace-global method-name-collision pre-pass at
crates/ailang-core/src/workspace.rs:547.
Three resolution paths surfaced: (A) prep-iter rename Show→Render in
fixtures+tests, (B) inline-rename in 24.2 (makes iter bigger),
(C) defer 24.2+24.3 until the P2 milestone "Module-qualified class
names + type-driven method dispatch" retires the MethodNameCollision
workaround. User picked C.
Spec status flips Draft → Partial; the document remains as historical
context for the future re-brainstorm. Iter 24.1 retains as standalone
runtime infrastructure (`bool_to_str` + `str_clone` heap-Str
primitives are user-callable today; they wait for the deferred Show
instances to find their primary caller). Roadmap P1 entry flips
`[ ] → [~]` with `depends on:` line pointing at the P2 milestone.
Brummel
062a811d7c