[llvm-branch-commits] [lldb] If the address of the isa_pointer is returned as an error don't ask if it is a tagged pointer (#213163) (PR #216226)

[Tobias Hieta via llvm-branch-commits]

https://github.com/tru approved this pull request.

Approving on behalf of the release team for the 23.1.1 backport. @bulbazord (upstream approver of #213163) reviewed and confirmed LGTM in the thread above. Minimal two-line guard against feeding a failed-read sentinel into `IsTaggedPointer()`; in scope for the point release.

https://github.com/llvm/llvm-project/pull/216226