feat(bindings/ts): Add transform/strip-only mode

[kdy1]

Description:

This PR adds strip-only/transform mode to @swc/wasm-typescript.

• Both mode errors on decorator usages.
• In strip-only mode, enum and TypeScript parameter properties are treated as an invalid syntax.
• In transform mode, those are transpiled.

[kdy1]

swc-bump:

• dbg-swc

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[GeoffreyBooth]

@kdy1 Thank you for adding this! Is there a way I can test this new mode in the SWC playground? When I go to https://swc.rs/playground and choose 1.6.8-nightly-20240706.1 and try to add "mode": "strip-only" at various places in the JSON config editor, they all error.

[kdy1]

Fast TS strip is a separate tool, so if you want to try it on the web, we may need to build another playground. The fastest way to test output is adding a test file (or modify one) in https://github.com/swc-project/swc/tree/2fe2feeb1fb0d1776295da28b0af792e2a19da3f/crates/swc_fast_ts_strip/tests and run UPDATE=1 cargo test -p swc_fast_ts_strip. It requires rustup to run.

[GeoffreyBooth]

@kdy1 Thanks. I think if --experimental-strip-types ships in Node, users will want a way to see what source code Node is evaluating. Adding this to the existing playground, or creating a new one, sounds like a great idea if you’re up for it.

[kdy1]

@GeoffreyBooth I filed swc-project/swc-playground#42

[kdy1]

@GeoffreyBooth Now the SWC playground has one!

Thank you, @g-plane !