JIT

gh-134584: Eliminate redundant refcounting from `_CALL_LEN` #4556

Job	Run time
Interpreter (Debug)	45s
Free-Threaded (Debug)	0s
JIT without optimizations (Debug)	0s
JIT with tail calling interpreter	0s
${{ matrix.target }} (${{ ((matrix.debug && 'Debug') \|\| 'Release') }})	0s
	45s

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