add URL typing to webworker

[vincentbel]

URL is also available in worker. (URL IDL spec). Fix microsoft/TypeScript#14878.

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Questions:

1. URL tying is already defined in inputfiles/browser.webidl.xml#L11367-L11395, so it is only need to added to worker. So I added "flavor": "Worker", but it seems doesn't work.(same as "flavor": "All" for URLSearchParams) 😅
2. I'm not sure whether the URL and URLSearchParams should be added to WorkerGlobalScope. It is signed as Exposed=(Window,Worker) in the spec IDL
3. The spec IDL use USVString, but I use string here (keep it same as previous added URLSearchParams typing). Doesn't it matters?

Updates:

1. Just add URL and URLSearcParams to knownWorkerInterfaces.json.
2. URL and URLSearchParams shouldn't be added to WorkerGlobalScope.(The same as fetch related typing)

[msftclas]

@VincentBel,
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[msftclas]

@vincentbel, thanks for signing the contribution license agreement. We will now validate the agreement and then the pull request.

Thanks, Microsoft Pull Request Bot

[mhegazy]

interface URL is already defined in this file. no need to redefine it.

[mhegazy]

just edit inputfiles\knownWorkerInterfaces.json to add URL and URLSearcParams.

[vincentbel]

@mhegazy updated. But ci is still failing. I have see some other PRs, and they seems failed with the same error.

[mhegazy]

looks like you need ObjectURLOptions as well

[vincentbel]

Added.

[mhegazy]

thanks!