[SOL] Bring upstream BPF changes to SBF #230

Job	Run time
abi-dump-setup	59s
Build lldb / Lit Tests (ubuntu-latest)	2h 1m 23s
Test lld / Lit Tests (ubuntu-latest)	1h 5m 54s
Test llvm,clang,libclc / Lit Tests (ubuntu-latest)	2h 45m 43s
Build lldb / Lit Tests (windows-2019)	1m 24s
Test lld / Lit Tests (windows-2019)	2m 32s
Test llvm,clang,libclc / Lit Tests (windows-2019)	2m 28s
Build lldb / Lit Tests (macOS-latest)	1h 47m 48s
Test llvm,clang,libclc / Lit Tests (macOS-latest)	3h 47m 24s
Test lld / Lit Tests (macOS-latest)	2h 0m 53s
abi-dump (build-baseline)	33m 13s
abi-dump (build-latest)	32m 11s
abi-compare	28s
	14h 42m 20s

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