Thanks for the feedback. What do you mean with global variables for class state? We do consider moving class-bodies inside an actual function (again) - but there is a virtual scope there in the compiler. So

    class A
	var i = 10
    var i = 20

Compiles to

    function A(){ };	
    var i1 = 10;
    var i = 20;

So they are actually scoped even though it does not look like it in the compiled js. I'm looking really forward to improving the sublime plugin to show much more stuff from the compiler and warn about calls to undefined methods etc. There is a lot of analysis from the compiler that can be used to improve the ide-like experience.