test: migrate 24 residual carriers into the fixture corpus

Audit-driven migrate-and-retire wave (one read-only auditor per
carrier batch, verdicts row-checked through the full corpus gate):
every retired carrier's assertions are now owned by declarative
fixtures or an existing owner. 238 new fixtures land (corpus 1,239 ->
1,477; cells 2,954), covering enum/str/slice/tagged array elements,
inferred-length arrays, global slice/str zero-init and literals,
global array/pointer field reads and stores, struct-literal slice
fields, struct returns, float arithmetic, size/int limits, sort and
log-vstream behavior, place-addressed stores, and append places.
Rejection rows STRENGTHEN the old nonzero-exit checks to required
diagnostic fragments; all byte-id claims fold into the blanket
test-data-byteid sweep (now 1,142 compared, 0 pinned-divergent).
Four carriers were fully redundant with existing fixtures/lang tests
(749, 722, 765, and 771's byteid rows) and retire without new rows.
Native carriers 171 -> 147 (residual 135 -> 111).

test/wcc/data/r963_sort_rbisect/case.ww

@@ -0,0 +1,30 @@
+//ww:run
+package main;
+import sort;
+fn ints(a: *opaque, b: *opaque) int = {
+	let pa: *i32 = a: *i32;
+	let pb: *i32 = b: *i32;
+	let va: i32 = *pa;
+	let vb: i32 = *pb;
+	if (va < vb) { return -1; };
+	if (va > vb) { return 1; };
+	return 0;
+};
+export fn main() i32 = {
+	let nums: [10]i32 = [1, 3, 4, 4, 5, 7, 9, 11, 11, 11];
+	let s: []i32 = nums[0:10];
+	let n: size = len(s): size;
+	let i: size = 0;
+	for (i < n) {
+		if (i == n - 1 || nums[i + 1] != nums[i]) {
+			let key: i32 = nums[i];
+			if (sort.rbisect(s, size(i32), &key, ints) != i + 1) { return 1; };
+		};
+		i = i + 1;
+	};
+	let n0: i32 = 0;   if (sort.rbisect(s, size(i32), &n0, ints) != 0)  { return 2; };
+	let n6: i32 = 6;   if (sort.rbisect(s, size(i32), &n6, ints) != 5)  { return 3; };
+	let n8: i32 = 8;   if (sort.rbisect(s, size(i32), &n8, ints) != 6)  { return 4; };
+	let n12: i32 = 12; if (sort.rbisect(s, size(i32), &n12, ints) != n) { return 5; };
+	return 0;
+};