cgen: fix codegen for array fixed on if and match expr (fix #23577, f… #9244

Job	Run time
tests-sanitize-address-msvc	4m 7s
tests-sanitize-address-clang	2h 31m 33s
tests-sanitize-address-gcc	2h 15m 42s
tests-sanitize-memory-clang	2h 45m 55s
tests-sanitize-undefined-gcc	58m 19s
tests-sanitize-undefined-clang	44m 47s
	9h 20m 23s

Provide feedback