Merge "AAPT2: Fix multi APK output"

  // TODO(safarmer): Handle APK version codes for the generated APKs.

  // TODO(safarmer): Handle explicit outputs/generating an output file list for other tools.

  const std::string& apk_path = apk_->GetSource().path;

  const std::string& apk_path = file::GetFilename(apk_->GetSource().path).to_string();

  const StringPiece ext = file::GetExtension(apk_path);

  const std::string base_name = apk_path.substr(0, apk_path.rfind(ext.to_string()));

    std::unique_ptr<ResourceTable> table = apk_->GetResourceTable()->Clone();

    TableSplitter splitter{{}, splits};

    splitter.SplitTable(table.get());

    std::string out = out_dir;

    if (!file::mkdirs(out)) {

      context_->GetDiagnostics()->Warn(DiagMessage() << "could not create out dir: " << out);

    }

    file::AppendPath(&out, artifact_name.value());

    std::unique_ptr<IArchiveWriter> writer =