JIT

Tidy up #655

Job	Run time
Interpreter (Debug)	9m 34s
i686-pc-windows-msvc/msvc (Debug)	23m 2s
i686-pc-windows-msvc/msvc (Release)	13m 53s
x86_64-pc-windows-msvc/msvc (Debug)	22m 35s
aarch64-pc-windows-msvc/msvc (Debug)	21m 7s
x86_64-pc-windows-msvc/msvc (Release)	14m 29s
aarch64-pc-windows-msvc/msvc (Release)	18m 31s
x86_64-apple-darwin/clang (Release)	14m 59s
aarch64-apple-darwin/clang (Debug)	11m 10s
aarch64-apple-darwin/clang (Release)	11m 14s
x86_64-apple-darwin/clang (Debug)	15m 50s
x86_64-unknown-linux-gnu/gcc (Debug)	10m 31s
x86_64-unknown-linux-gnu/gcc (Release)	6m 38s
aarch64-unknown-linux-gnu/gcc (Release)	6m 49s
aarch64-unknown-linux-gnu/gcc (Debug)	8m 1s
	3h 28m 23s

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