notes: """
  CoffeeScript doesn't supprot adding `when` clauses that are empty, as you
  probably would in JavaScript. Js2coffee will consolidate empty `case` clauses
  together to make things more readable.
"""
----
switch (a) {
  case one:
  case two:
    b();
    break;
  default:
    c();
}
----
switch a
  when one, two
    b()
  else
    c()
