   [web] Google's closure library/compiler
  Have you guys seen this?  Apparently about a year ago, Google open sourced their entire &#106avascript library and toolchain--including all the widgets they use, like Gmail's text editor.The &#106avascript compiler is wicked awesome too.  It does static type checking based on jsdoc-like comments you sprinkle around your code, and finds a lot of common errors that you normally wouldn't get reported until run in the browser.  It even does function inlining, dead code removal, etc.  Check out this sweet example, where the compiler's input and output are as follows:function unusedFunction(note) {  alert(note['text']);}function displayNoteTitle(note) {  alert(note['title']);}var flowerNote = {};flowerNote['title'] = "Flowers";displayNoteTitle(flowerNote);var a={};a.title="Flowers";alert(a.title);I'm obviously interested in using it for LucidChart (see sig), but it would be incredibly handy for any large-scale &#106avascript project, like games.  Anyone else here using it?   