JIT

gh-145742: Manually emit _LOAD_FAST_BORROW to reduce stencil bloat #5962

Job	Run time
x86_64-apple-darwin/clang (Debug)	24m 33s
aarch64-apple-darwin/clang (Release)	13m 8s
x86_64-unknown-linux-gnu/gcc (Release)	8m 14s
Interpreter (Debug)	12m 13s
JIT with tail calling interpreter	4m 41s
Free-Threaded (Debug)	3m 32s
aarch64-pc-windows-msvc/msvc (Debug)	26m 39s
aarch64-unknown-linux-gnu/gcc (Release)	7m 7s
JIT without optimizations (Debug)	3m 44s
x86_64-unknown-linux-gnu/gcc (Debug)	13m 57s
i686-pc-windows-msvc/msvc (Debug)	25m 50s
i686-pc-windows-msvc/msvc (Release)	15m 1s
x86_64-pc-windows-msvc/msvc (Release)	15m 2s
aarch64-apple-darwin/clang (Debug)	16m 50s
x86_64-apple-darwin/clang (Release)	26m 21s
aarch64-pc-windows-msvc/msvc (Release)	20m 52s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 20s
x86_64-pc-windows-msvc/msvc (Debug)	28m 6s
	4h 35m 10s

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