* test disable do: block lambda lifting
* fix last test [skip ci]
* deprecate `do:` meaning `do ():` + misc cleanup
closes https://github.com/nim-lang/RFCs/issues/486
* oops
* fix
* no idea what could be causing nimsuggest failure other than this
* ensure ci works
Prefer moving tests to a non-js directory so that they get tested across all backends automatically.
Ideally, tests/js should be reserved to code that only makes sense in js.
Note also that tests for a js specific module (e.g.: std/jsbigints) belong to tests/stdlib, (e.g.: tests/stdlib/tjsbigints.nim)