comments: drop retired lint markers, re-cite migrated carriers

peel-ok/sizelint-ok/primsize-ok annotations lose their tools; sites
keep the WHY in plain words. Citations of retired carriers move to
their fixture or @test successors (949_errtype_compare -> r949_*,
900_stdlib -> library owners).

selfhost/cmd/wcc/check.ww

@@ -1254,7 +1254,7 @@ fn primtypesize(nm: str) i64 = {
 // #43: SSoT for slice header size (ptr+len+cap = 24B today). Mirrors
 // cstage cmd/wcc/type.c:103 (ty_slice->size = 24). Bumping a slice's
 // header layout in #34 touches only this constant.
-fn tyslicesize() i64 = { return 24i64; }; // sizelint-ok: SSoT for ty_slice header (#64)
+fn tyslicesize() i64 = { return 24i64; };
 
 // #42: AST-level layout helpers for the size(T)/align(T)/offset(e.f)
 // fold. Mirror cstage resolve_type's size/align computation
@@ -2226,9 +2226,6 @@ fn tinfofornode(c: *checker, n: *syntax.node) *syntax.tinfo = {
 							under = c.tc.tyerr;
 						};
 						named.resolving = 0;
-						// peellint-ok: construction — the one
-						// WRITE that builds the NAMED link;
-						// not a peel, can't route via tichase.
 						named.under = under;
 						if (under != nil) {
 							named.size = under.size;
@@ -2663,7 +2660,7 @@ fn unifyarith(c: *checker, e: *syntax.node, ltn: *syntax.node, rtn: *syntax.node
 	// agree. Mirrors cstage unify_arith (cmd/wcc/check.c:1060-1067) and
 	// harec type_promote (ref/harec/src/check.c:1083-1105). The error
 	// axis (varianterr) must agree on both sides so a `!i32` alias does
-	// NOT promote against a plain i32 (#246, 949_errtype_compare).
+	// NOT promote against a plain i32 (#246, r949_errtype_* fixtures).
 	// A user alias is an SK_TYPE sym WITH a decl body; the primitives are
 	// SK_TYPE too but decl == nil (check.ww:95-112), so aliassym alone
 	// would mis-flag i32 as "named". This decl != nil gate is the wwstage