Cait2 branch changes about pedal

[lukesg08]

I like the changes that you made. for the AstMap.getitem I created a workaround for that so that you can access it as both list, or an AstSymbol, so it supports a more flexible syntax. So the two asserts below would both evaluate to true

set_source("fun = 0\nfun = 1")
parse_program()
my_match = find_match("_fun_ = ___")
self.assertTrue(my_match["_fun_"].id == "fun")
self.assertTrue(my_match["_fun_"][0].id == "fun")

This was implemented by creating AstSymbolList as a wrapper for the dictionaries.

[acbart]

Ah, that seems like a good idea. We'll need to run this stuff through Skulpt/BlockPy to make sure it all works out, but this seems like some good improvements to me. I still have a bunch of Sandbox, Source, Resolver, and Assertions stuff to wrap up, but I think those are almost ready. Hopefully I can get them done by our meeting tomorrow morning.

[lukesg08]

We finished this a while ago I'm pretty sure.