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/r827_byte_eq_global/case.ww

@@ -0,0 +1,9 @@
+//ww:run
+// Import-free byte-identity source from 827_str_eq row be_eq_global.
+package main;
+let g: str = "abc";
+let h: str = "abd";
+export fn main() i32 = {
+	if (g == h) { return 1; };
+	return 0;
+};