chore: opt jest codebase

[eryue0220]

Summary

This pr is optimize code base. Including jest-runtime, jest-changed-files and jest-core and so on.

Test plan

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[mrazauskas]

It would be nice to make the message required. Also it would be nice to append "This is a bug in Jest...", like here:

jest/packages/jest-runtime/src/index.ts

Line 530 in 0fd5b1c

`Module cache already has entry ${cacheKey}. This is a bug in Jest, please report it!`,

jest/packages/jest-runtime/src/index.ts

Line 546 in 0fd5b1c

'Module cache does not contain module. This is a bug in Jest, please open up an issue',

invariant() is used in places there value is defined, but TypeScript cannot see that. So a failure is definitely a bug, that is why it makes sense to append "This is a bug in Jest..."

By the way, it could be good default message (instead of making the message required).

[mrazauskas]

Sorry, I was wrong. Apparently invariant() is also used to validated custom transformers. CI got broken, these messages are correct in current tests.

[eryue0220]

@mrazauskas I've try some methods to fix CI, and it did not work. Now I need your help. Is there any suggestions or methods to fix the broken CI. The informations is above:

monitors only root paths for git
EBUSY: resource busy or locked, rmdir '\\?\C:\Users\RUNNER~1\AppData\Local\Temp\jest-changed-files-test-dir'

    at rmSync (e2e/Utils.ts:105:8)
    at Object.<anonymous> (e2e/__tests__/jestChangedFiles.test.ts:61:25)

and

gets hg SCM roots and dedupes them
EBUSY: resource busy or locked, rmdir '\\?\C:\Users\RUNNER~1\AppData\Local\Temp\jest-changed-files-test-dir'

    at rmSync (e2e/Utils.ts:105:8)
    at Object.<anonymous> (e2e/__tests__/jestChangedFiles.test.ts:61:25)

more details in link.

Thanks any more.

[mrazauskas]

This is flaky test. Just ignore it. Not related with your changes.

[eryue0220]

Can this pr be merged, if no other problems ? cc @SimenB @mrazauskas

[SimenB]

thanks!

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