test/wcc/data: grow the declarative compiler corpus to 1,224 fixtures

The r-prefixed waves absorb the runtime, reject, and byte-compare rows
of the migrated native carriers; each fixture is one directory with one
case.ww and a //ww:error, //ww:compile, //ww:run, or //ww:run-exit
directive covering both frontends.

test/wcc/data/r84_matchglob_str/case.ww

@@ -0,0 +1,11 @@
+//ww:run-exit 5
+package main;
+type box = struct { t: (str | int), n: int };
+let g: box = box { t = 0, n = 5 };
+fn main() i32 = {
+	g.t = "hello";
+	match (g.t) {
+	case let s: str => return len(s): i32;
+	case int => return 99;
+	};
+};