JIT

gh-137282: Fix `TypeError` in tab completion and `dir()` of `concurre… #18

Job	Run time
Interpreter (Debug)	9m 49s
i686-pc-windows-msvc/msvc (Release)	14m 28s
i686-pc-windows-msvc/msvc (Debug)	22m 48s
aarch64-pc-windows-msvc/msvc (Debug)	24m 10s
x86_64-pc-windows-msvc/msvc (Release)	13m 48s
aarch64-apple-darwin/clang (Release)	9m 53s
x86_64-pc-windows-msvc/msvc (Debug)	22m 51s
x86_64-apple-darwin/clang (Debug)	13m 24s
aarch64-unknown-linux-gnu/gcc (Release)	5m 43s
aarch64-apple-darwin/clang (Debug)	10m 28s
x86_64-apple-darwin/clang (Release)	15m 2s
aarch64-unknown-linux-gnu/gcc (Debug)	7m 9s
aarch64-pc-windows-msvc/msvc (Release)	19m 52s
x86_64-unknown-linux-gnu/gcc (Release)	7m 35s
x86_64-unknown-linux-gnu/gcc (Debug)	11m 35s
	3h 28m 35s

Provide feedback