[libc++abi] Don't do pointer arithmetic on nullptr#119520

vitalybuka merged 2 commits intomainllvm/llvm-project:mainfrom

users/vitalybuka/spr/libcabi-dont-do-pointer-arithmetic-on-nullptrllvm/llvm-project:users/vitalybuka/spr/libcabi-dont-do-pointer-arithmetic-on-nullptrCopy head branch name to clipboard