UPDATE: Complete & accurate versions can be found by brainy at flashdevelop forums, much better than my unfinished attempt.
I have written a quick & hacky script to parse the to create intrinsic classes. It is not perfect, and they still need a bit of cleanup by hand (imports, a few syntax errors here and there). But I’ve gotten a good 90% of the hard work done.
These would be useful for anyone using a IDE besides Flex Builder, in order to get autocomplete etc.
Please, if you do clean them up, post a comment, and I will link it here, so everyone can use them.
UPDATE: I tried again, this time by parsing the bytecodes from the SWC. There’s only one problem, no paramater names (but I do have paramamter types). The cool part about this way, is that it shows all the undocumented and private methods as well!
UPDATE AGAIN: was missing some classes due to not parsing dynamic or final classes.