JIT

gh-131798: JIT: Narrow the return type of `isinstance` for some known arguments #3463

Job	Run time
Interpreter (Debug)	10m 1s
i686-pc-windows-msvc/msvc (Debug)	5m 38s
i686-pc-windows-msvc/msvc (Release)	4m 55s
x86_64-pc-windows-msvc/msvc (Debug)	5m 10s
x86_64-pc-windows-msvc/msvc (Release)	5m 14s
aarch64-pc-windows-msvc/msvc (Debug)	6m 56s
aarch64-pc-windows-msvc/msvc (Release)	6m 45s
x86_64-apple-darwin/clang (Debug)	11m 16s
x86_64-apple-darwin/clang (Release)	11m 12s
aarch64-apple-darwin/clang (Debug)	11m 6s
aarch64-apple-darwin/clang (Release)	10m 47s
x86_64-unknown-linux-gnu/gcc (Debug)	11m 3s
x86_64-unknown-linux-gnu/gcc (Release)	6m 14s
aarch64-unknown-linux-gnu/gcc (Debug)	8m 1s
aarch64-unknown-linux-gnu/gcc (Release)	5m 41s
	1h 59m 59s

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