Add file and line to compiled snippits.
Try to get compiler specs running against a better self.
Remove another rogue TC push.
Implement error info, lambda, and encoding instructions.
Provide IRScope to jitted bodies, so evals can work.
Minor efficiency improvement for complex IR arg processing.
Implement arg splatting for super forms and UnresolvedSuper.
Does it?
invokeSelf fallbacks should use finvoke; invoke needs frame.