[lldb][ClangASTImporter][NFC] Emit a log message when we break MapImported invariant#112748

Michael137 merged 6 commits intollvm:mainllvm/llvm-project:mainfrom

Michael137:lldb/warn-on-mapimported-conflictMichael137/llvm-project:lldb/warn-on-mapimported-conflictCopy head branch name to clipboard