JIT

gh-131998: Fix `NULL` dereference when using an unbound method descriptor in a specialized code path #3082

Job	Run time
Interpreter (Debug)	9m 2s
Free-Threaded (Debug) (19)	14m 11s
i686-pc-windows-msvc/msvc (Debug)	20m 53s
i686-pc-windows-msvc/msvc (Release)	12m 47s
x86_64-pc-windows-msvc/msvc (Debug)	20m 22s
x86_64-pc-windows-msvc/msvc (Release)	11m 31s
aarch64-pc-windows-msvc/msvc (Debug)	5m 10s
aarch64-pc-windows-msvc/msvc (Release)	7m 16s
x86_64-apple-darwin/clang (Debug)	15m 12s
x86_64-apple-darwin/clang (Release)	12m 50s
aarch64-apple-darwin/clang (Debug)	10m 7s
aarch64-apple-darwin/clang (Release)	10m 31s
x86_64-unknown-linux-gnu/gcc (Debug)	10m 9s
x86_64-unknown-linux-gnu/gcc (Release)	6m 4s
aarch64-unknown-linux-gnu/gcc (Debug)	10m 19s
aarch64-unknown-linux-gnu/gcc (Release)	6m 35s
	3h 2m 59s

Provide feedback