Add IntegerTypedArray type for use with crypto.getRandomValues

[lionel-rowe]

Fixes #61768

Towards microsoft/TypeScript-DOM-lib-generator#1194

The current DOM types <T extends ArrayBufferView | null> are wrong for crypto.getRandomValues. null is never accepted, and ArrayBufferView is too broad as float arrays also aren't accepted.

However, fixing in TypeScript-DOM-lib-generator requires conditional inclusion of BigInt64Array | BigUint64Array depending on ES2020 availability. I don't think there's a way to fix that within TypeScript-DOM-lib-generator without this upstream change in TypeScript.

[Copilot]

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

[typescript-bot]

This PR doesn't have any linked issues. Please open an issue that references this PR. From there we can discuss and prioritise.

[typescript-bot]

This PR doesn't have any linked issues. Please open an issue that references this PR. From there we can discuss and prioritise.

[typescript-bot]

With 6.0 out as the final release vehicle for this codebase, we're closing all PRs that don't fit the merge criteria for post-6.0 patches. If you think this was a mistake and this PR fits the post-6.0 patch criteria, please post to the 6.0 iteration issue with details (specifically, which PR and which patch criteria it satisfies).

Next steps for PRs:

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