Use peephole instead #288

Job	Run time
abi-dump-setup	1m 24s
Test lld / Lit Tests (ubuntu-22.04)	10m 28s
Test llvm,clang,libclc / Lit Tests (ubuntu-22.04)	46m 35s
Test lld / Lit Tests (windows-2019)	1m 54s
Build lldb / Lit Tests (ubuntu-22.04)	25m 51s
Test llvm,clang,libclc / Lit Tests (windows-2019)	2m 1s
Test lld / Lit Tests (macOS-latest)	8m 40s
Build lldb / Lit Tests (windows-2019)	1m 55s
Test llvm,clang,libclc / Lit Tests (macOS-latest)	1h 5m 37s
Build lldb / Lit Tests (macOS-latest)	18m 25s
abi-dump (build-baseline)	39m 4s
abi-dump (build-latest)	32m 3s
abi-compare	31s
	4h 14m 28s

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