JIT

Use QSBR to avoid locking in PyType_IsSubtype #31

Job	Run time
i686-pc-windows-msvc/msvc (Debug)	17m 15s
i686-pc-windows-msvc/msvc (Release)	23m 17s
x86_64-pc-windows-msvc/msvc (Debug)	17m 20s
x86_64-pc-windows-msvc/msvc (Release)	21m 29s
aarch64-pc-windows-msvc/msvc (Debug)	5m 4s
aarch64-pc-windows-msvc/msvc (Release)	5m 58s
x86_64-apple-darwin/clang (Debug)	11m 48s
x86_64-apple-darwin/clang (Release)	15m 23s
aarch64-apple-darwin/clang (Debug)	8m 41s
aarch64-apple-darwin/clang (Release)	12m 35s
x86_64-unknown-linux-gnu/gcc (Debug)	7m 17s
x86_64-unknown-linux-gnu/gcc (Release)	17m 43s
x86_64-unknown-linux-gnu/clang (Debug)	7m 46s
x86_64-unknown-linux-gnu/clang (Release)	13m 30s
aarch64-unknown-linux-gnu/gcc (Debug)	58m 38s
aarch64-unknown-linux-gnu/gcc (Release)	47m 45s
aarch64-unknown-linux-gnu/clang (Debug)	54m 59s
aarch64-unknown-linux-gnu/clang (Release)	31m 39s
	6h 18m 7s

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