The .pure->.naked rename (a7fe165) git-mv'd examples 1800-1803 to their
naked names but the perl content edit (abi(.pure) -> abi(.naked) in the
bodies/comments) was never re-staged, so HEAD carried the renamed files
with stale abi(.pure) bodies — which the compiler now rejects ("unknown
ABI"). The working tree had the correct .naked bodies uncommitted; this
commits them so HEAD parses + builds clean.
"pure" universally means side-effect-free (GCC __attribute__((pure)),
FP purity, D's pure) — the opposite of a register-clobbering context
switch. The concept is "naked": no compiler-generated prologue/epilogue,
body is raw asm that emits its own ret. That is the established term
everywhere (LLVM's naked function attribute — which we literally emit —
plus Zig callconv(.naked), Rust #[naked], GCC/Clang __attribute__
((naked))). Rename the keyword + everything keyed off it so concept,
surface, field, and the emitted LLVM attribute all agree.
- ast.zig: ABI enum variant pure -> naked (+ doc).
- parser: accept abi(.naked); error text updated.
- IR Function.is_pure -> is_naked; type_resolver/decl/generic/pack/
emit_llvm references updated; diagnostics say abi(.naked).
- examples 1800-1803 renamed *-pure-* -> *-naked-* (source + expected/
snapshots; .ir/.exit/.stdout/.stderr are byte-identical — the emitted
IR is unchanged, only the keyword spelling differs).
- docs (PLAN-FIBERS, CHECKPOINT-FIBERS, PLAN-POST-METATYPE, the design
roadmap, the compiler-API checkpoint/design) updated; the naming
rationale now records why .naked over .pure.
No semantic change — pure cosmetics. Suite green (725/0).
