Add support for semantic / tree-sitter

[0xdevalias]

It would be really cool if AST Explorer was able to support 'Semantic' and/or 'Tree-Sitter':

• https://github.com/github/semantic

  • Parsing, analyzing, and comparing source code across many languages

• https://github.com/tree-sitter/tree-sitter

  • An incremental parsing system for programming tools

  • https://github.com/tree-sitter/tree-sitter/blob/master/lib/binding_web/

    • WebAssembly bindings to the Tree-sitter parsing library.

  • https://github.com/tree-sitter/tree-sitter/tree/master/cli

    • The Tree-sitter CLI allows you to develop, test, and use Tree-sitter grammars from the command line.

• https://github.com/tree-sitter/node-tree-sitter

  • Node.js bindings for tree-sitter

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Tree sitter's WASM distribution seems to be able to create an AST in browser:

npmjs.com/package/web-tree-sitter

Originally posted by @privatenumber in #622 (comment)

See also:

• https://github.com/tree-sitter/tree-sitter/tree/master/lib/binding_web

[0xdevalias]

See also:

• feat: web-tree-sitter #622