regexp: add ReplaceAllSubmatchFunc

[enumag]

Fixes #5690
Proposal #79405

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Patch Set 1:

(1 comment)

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Patch Set 1:

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Message from Jorropo:

Patch Set 2: Code-Review+2

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Message from Jorropo:

Patch Set 2: -Code-Review TryBot-Bypass+1

(1 comment)

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Patch Set 2: -TryBot-Bypass Commit-Queue+1

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Message from golang-scoped@luci-project-accounts.iam.gserviceaccount.com:

Patch Set 2:

Dry run: CV is trying the patch.

Bot data: {"action":"start","triggered_at":"2026-05-09T11:47:52Z","revision":"38926a84eaca1357fdeaa2d71df28ee6f9a3d180"}

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Patch Set 2: -Commit-Queue

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Message from golang-scoped@luci-project-accounts.iam.gserviceaccount.com:

Patch Set 2:

This CL has failed the run. Reason:

Tryjob golang/try/gotip-linux-amd64_debiansid has failed with summary (view all results):

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• go on master (change 776301)

To reproduce, try gomote repro 8682282412570282161.

Additional links for debugging:

• go tool dist test -json output [shard 2]

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Patch Set 2: LUCI-TryBot-Result-1

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Message from Ian Lance Taylor:

Patch Set 2: Hold+1

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Message from Jáchym Toušek:

Patch Set 2:

(2 comments)

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