Add Shell Tests

[camillobruni]

Add support for running basic cli.js tests with npm run test:jsc, npm run test:spidermonkey, npm run test:v8

[camillobruni]

I think this is now working...
We probably still want to add some additional validation at some point (especially for the web versions of these workloads),

[camillobruni]

Going to skip JSC for now, since we get a "rate limit exceeded" warning from querying the amazon buckets... not sure if there is an easier way to install this. I presume we can enable this again after a while and caching will prevent us from breakage.

[kmiller68]

Fun fact jsc exists on Mac but it's not part of the default PATH. You can run it from /System/Library/Frameworks/JavaScriptCore.framework/Versions/Current/Helpers/jsc. I think it moved at some point but that was a few years ago so that path should be fine.

[camillobruni]

ah cool, ok, I'll add a macos check and use that as the default ther, keeping jsvu as backup for other platforms.

[netlify]

✅ Deploy Preview for webkit-jetstream-preview ready!

Name	Link
🔨 Latest commit	b52131f
🔍 Latest deploy log	https://app.netlify.com/sites/webkit-jetstream-preview/deploys/67ea86ef04952100089e82f4
😎 Deploy Preview	https://deploy-preview-42--webkit-jetstream-preview.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[camillobruni]

PTAL again... I've re-added JSC support.
Looks like there might be a wasm failure due to the an older JSC version?

  Running Dart-flute-wasm:
  JetStream3 failed: CompileError: WebAssembly.Module doesn't parse at byte 15: 0th type failed to parse because sub types are not enabled
  undefined

[kmiller68]

LGTM