GH-111485: Fix handling of `FOR_ITER` in tier2 #97261

Job	Run time
Check for source changes	11s
Check if generated files are up to date	4m 36s
Docs	0s
Address sanitizer	7m 10s
Ubuntu SSL tests with OpenSSL (1.1.1w)	1m 55s
CIFuzz (address)	20m 15s
Ubuntu SSL tests with OpenSSL (3.0.11)	2m 0s
CIFuzz (undefined)	20m 45s
Hypothesis tests on Ubuntu	4m 55s
Ubuntu SSL tests with OpenSSL (3.1.3)	1m 59s
CIFuzz (memory)	21m 49s
Windows / build and test (x64)	13m 4s
Windows / build (arm64)	2m 57s
Windows / build and test (x86)	14m 15s
macOS / build and test	9m 55s
macOS (free-threaded) / build and test	15m 12s
Ubuntu / build and test	6m 46s
Ubuntu (free-threaded) / build and test	7m 25s
Windows (free-threaded) / build and test (x64)	17m 12s
Windows (free-threaded) / build and test (x86)	17m 30s
Windows (free-threaded) / build (arm64)	2m 26s
All required checks pass	2s
	3h 12m 19s

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