Update old xfailing spawn/bind/join test
Remove test for any type -> match type, which doesn't seem to exist anymore
Updated spawn / loop thread to work with current syntax
auto merge of #6099 : danluu/rust/xfail_clone, r=catamorphism

One of the tests seems to have no current equivalent that's similar. Please let me know if that's incorrect, and I'll try fixing it instead of deleting it. I suppose a struct could be used instead of `any` and `match type`, but it seems like the original intent of the test was to exercise `match type`