JIT

GH-133231: Changes to executor management to support proposed `sys._jit` module #3395

Job	Run time
Interpreter (Debug)	9m 14s
i686-pc-windows-msvc/msvc (Debug)	23m 7s
i686-pc-windows-msvc/msvc (Release)	11m 37s
x86_64-pc-windows-msvc/msvc (Debug)	19m 18s
x86_64-pc-windows-msvc/msvc (Release)	11m 42s
aarch64-pc-windows-msvc/msvc (Debug)	20m 30s
aarch64-pc-windows-msvc/msvc (Release)	17m 52s
x86_64-apple-darwin/clang (Debug)	14m 5s
x86_64-apple-darwin/clang (Release)	10m 27s
aarch64-apple-darwin/clang (Debug)	9m 49s
aarch64-apple-darwin/clang (Release)	9m 29s
x86_64-unknown-linux-gnu/gcc (Debug)	10m 21s
x86_64-unknown-linux-gnu/gcc (Release)	6m 14s
aarch64-unknown-linux-gnu/gcc (Debug)	7m 19s
aarch64-unknown-linux-gnu/gcc (Release)	6m 6s
	3h 7m 10s

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