[clang][Darwin] Error out when missing requested libarclite library

Starting with the SDKs provided with Xcode 14.3, this library no longer
exists. Before this change this results in an opaque linker error in the
case that your deployment target is low enough that this library is
added. This produces a more useful error message in that case.

Differential Revision: https://reviews.llvm.org/D150988