gh-134584: Eliminate redundant refcounting in JIT for `MATCH_CLASS` #2321

Job	Run time
x86_64-pc-windows-msvc/msvc-free-threading	5m 29s
x86_64-pc-windows-msvc/msvc	9m 47s
x86_64-unknown-linux-gnu/gcc-free-threading	8m 29s
x86_64-unknown-linux-gnu/gcc	10m 7s
x86_64-apple-darwin/clang	18m 20s
aarch64-apple-darwin/clang	9m 42s
aarch64-unknown-linux-gnu/gcc	7m 24s
	1h 9m 18s

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