Restore FnTokenEmulator#1141
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As of PHP 7.4, functions can no longer be named fn, due to the new arrow function syntax. Consequently, pre-7.4, functions may be called fn. This commit restores a previously present token emulator that made this behavior possible.
nikic
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Feb 22, 2026
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As of PHP 7.4, functions can no longer be named fn, due to the new arrow function syntax. Consequently, pre-7.4, functions may be called fn. This pull request restores a previously present token emulator that made this behavior possible.
Fixes #1139.