[stable/21.x][CGObjC] Allow clang.arc.attachedcall on -O0 (#164875)#12715

LumioseSil wants to merge 1 commit intoswiftlang:stable/21.xswiftlang/llvm-project:stable/21.xfrom

LumioseSil:swift-clang.arc.attachedcallLumioseSil/llvm-project:swift-clang.arc.attachedcallCopy head branch name to clipboard