Simplify typewriter code. #2745
Merged
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The typewriter code had a lot of specialized checks added to it. This was to keep the baselines non-noisy as we made changes to the typechecker. However, this also meant that its code was getting more and more complex for no appreciable long term gain.
I'm simplifying the typewriter code to always emit types for expressions/identifiers now, and we can use this as the baseline going forward as we make any compiler changes.
Also, we now print the results of getSymbolAtNode as well. Ensuring that if htis information changes, we'll know about it.