gh-148211: decompose `_INSERT_1_LOAD_CONST_INLINE(_BORROW)` in JIT (G… #2286

Job	Run time
aarch64-unknown-linux-gnu/gcc	7m 22s
aarch64-apple-darwin/clang	11m 51s
x86_64-unknown-linux-gnu/gcc-free-threading	8m 31s
x86_64-apple-darwin/clang	17m 11s
x86_64-unknown-linux-gnu/gcc	10m 12s
	55m 7s

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