Internal_link: Add ApiIsNarrow.#869

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gnprice merged 4 commits intozulip:mainfrom

PIG208:is-narrow

Aug 14, 2024

Commits on Aug 14, 2024

internal_link: Reject unknown `is` operand.

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internal_link [nfc]: Add ApiIsNarrow.

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gnprice
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internal_link [nfc]: Add generic support for `is` operands.

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internal_link: Allow duplicates of the same `is` operand.

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gnprice
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