fix(turbo-tasks): Implement is_transient on OperationVc

[bgw]

A function returning an OperationVc can call a transient function or have a transient argument.

IMO, TaskInput should not have default method implementations to avoid potential footguns like this.

Fixes breakage in canary: https://vercel.slack.com/archives/C04KC8A53T7/p1737746477519569

Closes PACK-3816

[bgw]

• fix(turbo-tasks): Implement is_transient on OperationVc #75291 👈 (View in Graphite)
• canary

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[ijjk]

Stats from current PR

Default Build (Increase detected ⚠️)

General

	vercel/next.js canary	vercel/next.js bgw/operation-is-transient	Change
buildDuration	17.6s	16s	N/A
buildDurationCached	15.1s	12.7s	N/A
nodeModulesSize	419 MB	419 MB	✓
nextStartRea..uration (ms)	397ms	398ms	N/A

Client Bundles (main, webpack)

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Rendered Page Sizes

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Edge SSR bundle Size

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Middleware size

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build cache Overall increase ⚠️

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Overall change	2.1 MB	2.1 MB	⚠️ +608 B

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Commit: 62ee28a

[bgw]

Merge activity

• Jan 24, 2:54 PM EST: A user merged this pull request with Graphite.