Visit deferred lambdas before type definitions

[charliermarsh]

Summary

This is effectively the same problem as #9175. And this just papers over it again, though I'm gonna try a more holistic fix in a follow-up PR. The real fix here is that we need to continue to visit deferred items until they're exhausted since, e.g., we still get this case wrong (flagging re as unused):

import re

cast(lambda: re.match, 1)

Closes #9534.

[codspeed-hq]

CodSpeed Performance Report

Merging #9540 will degrade performances by 4.35%

_{Comparing charlie/cast (5c424f0) with main (b983ab1)}

Summary

❌ 1 regressions
✅ 29 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	charlie/cast	Change
❌	parser[numpy/ctypeslib.py]	12.2 ms	12.8 ms	-4.35%

[github-actions]

ruff-ecosystem results

Linter (stable)

✅ ecosystem check detected no linter changes.

Linter (preview)

✅ ecosystem check detected no linter changes.