PR for llvm/llvm-project#70208 #726

Job	Run time
abi-dump-setup	1m 1s
Build lldb / Lit Tests (ubuntu-latest)	23m 9s
Build lldb / Lit Tests (windows-2019)	43m 1s
Test llvm,clang,libclc / Lit Tests (ubuntu-latest)	1h 31m 56s
Build lldb / Lit Tests (macOS-11)	27m 8s
Test llvm,clang,libclc / Lit Tests (windows-2019)	2h 26m 15s
Test lld / Lit Tests (ubuntu-latest)	15m 42s
Test llvm,clang,libclc / Lit Tests (macOS-11)	2h 47m 56s
Test lld / Lit Tests (windows-2019)	32m 45s
Test lld / Lit Tests (macOS-11)	24m 20s
abi-dump (build-baseline)	57m 46s
abi-dump (build-latest)	50m 36s
abi-compare	38s
	11h 22m 13s

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