JIT

gh-131798: JIT: Narrow the return type of `isinstance` for some known arguments #3464

Job	Run time
Interpreter (Debug)	9m 52s
i686-pc-windows-msvc/msvc (Debug)	2m 35s
i686-pc-windows-msvc/msvc (Release)	4m 33s
x86_64-pc-windows-msvc/msvc (Debug)	3m 2s
x86_64-pc-windows-msvc/msvc (Release)	3m 2s
aarch64-pc-windows-msvc/msvc (Debug)	5m 27s
aarch64-pc-windows-msvc/msvc (Release)	5m 19s
x86_64-apple-darwin/clang (Debug)	18m 47s
x86_64-apple-darwin/clang (Release)	18m 23s
aarch64-apple-darwin/clang (Debug)	11m 41s
aarch64-apple-darwin/clang (Release)	10m 40s
x86_64-unknown-linux-gnu/gcc (Debug)	11m 10s
x86_64-unknown-linux-gnu/gcc (Release)	6m 35s
aarch64-unknown-linux-gnu/gcc (Debug)	7m 22s
aarch64-unknown-linux-gnu/gcc (Release)	5m 48s
	2h 4m 16s

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