JIT

Address review comments and small refactoring. #103

Job	Run time
Interpreter (Debug)	7m 16s
Free-Threaded (Debug)	10m 14s
i686-pc-windows-msvc/msvc (Debug)	22m 29s
i686-pc-windows-msvc/msvc (Release)	24m 12s
x86_64-pc-windows-msvc/msvc (Debug)	17m 42s
x86_64-pc-windows-msvc/msvc (Release)	24m 51s
aarch64-pc-windows-msvc/msvc (Debug)	5m 26s
aarch64-pc-windows-msvc/msvc (Release)	6m 3s
x86_64-apple-darwin/clang (Debug)	15m 59s
x86_64-apple-darwin/clang (Release)	18m 20s
aarch64-apple-darwin/clang (Debug)	10m 57s
aarch64-apple-darwin/clang (Release)	14m 49s
x86_64-unknown-linux-gnu/gcc (Debug)	8m 14s
x86_64-unknown-linux-gnu/gcc (Release)	12m 21s
x86_64-unknown-linux-gnu/clang (Debug)	8m 16s
x86_64-unknown-linux-gnu/clang (Release)	11m 34s
aarch64-unknown-linux-gnu/gcc (Debug)	1h 16m 35s
aarch64-unknown-linux-gnu/gcc (Release)	48m 19s
aarch64-unknown-linux-gnu/clang (Debug)	1h 3m 55s
aarch64-unknown-linux-gnu/clang (Release)	36m 40s
	7h 24m 12s

Provide feedback