Support more of the class syntax

[resolritter]

closes #131

[resolritter]

Needs a refactor for ac5dac1. Moving to draft.

[resolritter]

@mjambon I ran the following for tests:

npm run build-tsx && npm run-script test-tsx && npm run build-typescript && npm run test-typescript

It added a bunch of new files. Not sure if that's intended.

[mjambon]

I don't know about these new files either. Let me see if I can get this info by tomorrow, otherwise, let's just leave them since they're relatively small compared to src/parser.c.

[dcreager]

The new files should be removed from this PR, since they are redundant with the same-named files in repo root. @mjambon, your patch in #181 is a good fix for this.

tree-sitter/tree-sitter#1243 is a good top-level discussion about generated files in general — the consensus is that we want to remove them from grammar repos as part of a tree-sitter 1.0 release. That said, these files contain the source code of the Rust and NPM bindings for this parser, and are not quite in the same category as the generated C source code for the grammar itself. I'm going to raise this distinction on 1243 to get more 👀 on it.

[mjambon]

Merging!