TSL2561 luminosity sensor

Hmm. Could you try and come up with a really simple bit of code that fails, and stick it on https://github.com/espruino/Espruino/issues ?

This sort of thing does work though:

>function a() { return { a : function() { return 42; } } }
=function () { return { a : function() { return 42; } } }
>a().a()
=42
>a().a(function (val) { }) 
=42

Good point about the public constants, I'll make sure I think about that.