JIT

gh-143421: Move `JitOptContext` from stack allocation to per-thread h… #4917

Job	Run time
Interpreter (Debug)	11m 6s
Free-Threaded (Debug) (21)	17m 12s
JIT without optimizations (Debug) (21)	13m 1s
JIT with tail calling interpreter (21)	4m 23s
x86_64-pc-windows-msvc/msvc (Debug)	25m 13s
x86_64-unknown-linux-gnu/gcc (Debug)	12m 21s
x86_64-pc-windows-msvc/msvc (Release)	13m 6s
aarch64-pc-windows-msvc/msvc (Debug)	26m 37s
aarch64-apple-darwin/clang (Release)	12m 4s
i686-pc-windows-msvc/msvc (Release)	14m 31s
aarch64-unknown-linux-gnu/gcc (Release)	7m 35s
x86_64-unknown-linux-gnu/gcc (Release)	8m 38s
aarch64-pc-windows-msvc/msvc (Release)	18m 38s
x86_64-apple-darwin/clang (Debug)	31m 32s
aarch64-apple-darwin/clang (Debug)	13m 31s
x86_64-apple-darwin/clang (Release)	34m 52s
i686-pc-windows-msvc/msvc (Debug)	27m 5s
aarch64-unknown-linux-gnu/gcc (Debug)	8m 28s
	4h 59m 53s

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