Document webpack change: Chunk loading method per entrypoint

[webpack-bot]

A pull request by @sokra was merged and maintainers requested a documentation change.

See pull request: webpack/webpack#11385

---

This is preparation work to add support for

• __webpack_entry__ to create a entrypoint from inside of source code. Returns the paths to the files needed for this entrypoint.
• new Worker(new URL("./worker", import.meta.url), { type: "module" }) to create a webworker. It will be added as entrypoint with different chunk loading method.

What kind of change does this PR introduce?
refactoring, feature

Did you add tests for your changes?
yes + existing tests

Does this PR introduce a breaking change?
yes

What needs to be documented once your changes are merged?

• renames:
  • output.hotUpdateFunction -> output.hotUpdateGlobal
  • output.jsonpFunction -> output.chunkLoadingGlobal
  • output.chunkCallbackFunction -> output.chunkLoadingGlobal
• new options:
  • output.chunkLoading: The method of loading chunks (methods included by default are 'jsonp' (web), 'import-scripts' (WebWorker), 'require' (sync node.js), 'async-node' (async node.js), but others might be added by plugins).
  • output.chunkFormat: The format of chunks (formats included by default are 'array-push' (web/WebWorker), 'commonjs' (node.js), but others might be added by plugins).
  • defaults are chosen based on target option
  • output.enabledChunkLoadingTypes: List of chunk loading types enabled. Will be automatically filled by webpack. Only needed when using a function as entry option and returning chunkLoading option from there.
  • entry.*.chunkLoading: Like output.chunkLoading but only for this entry.
• output.library and output.chunkLoading now also allow any string in schema, to support adding custom types via plugins.
• output.globalObject defaults to self instead of window of web-like targets

[anshumanv]

wip

[bertho-zero]

Can we set chunkLoadingGlobal per entrypoint?

I am using the plugin https://github.com/gregberge/loadable-components which modifies chunkLoadingGlobal but the problem is that it "captures" all my entrypoints.

Related issue: gregberge/loadable-components#751