Make "".ord return Any, just like Niecza (unspecced behaviour, afaics)
Make .tc work on Cool, just like .tclc, .uc and friends
Straighten out .tc/.tclc and tc()/tclc()
Make Set work according to spec, without using typed hashes :-)
Remove some unneeded (double) stubs
Make KeySet a Set, and make it work according to spec
Cleanup of .gist/.perl for KeySet|Set