io.monitors.recursive: On Windows, at least, a recursive file monitor gets

set up for every single file. This is causing OOM errors on win32, so
let's just test resource:core\io instead.

basis/io/monitors/recursive/recursive-tests.factor

@@ -33,7 +33,7 @@ M: mock-io-backend link-info
 
 [ ] [
     mock-io-backend io-backend [
-        "" resource-path <mailbox> <recursive-monitor> dispose
+        "resource:core/io" resource-path <mailbox> <recursive-monitor> dispose
     ] with-variable
 ] unit-test