Merge "Fix conditional keep rules for new semantics"

      can_be_conditional &= CollectLocations(location, keep_set, &locations);

    }

    for (const UsageLocation& location : entry.second) {

      printer.Print("# Referenced at ").Println(location.source.to_string());

    }

    if (keep_set.conditional_keep_rules_ && can_be_conditional) {

      printer.Println("-if class **.R$layout {");

      printer.Indent();

      for (const UsageLocation& location : locations) {

        printer.Print("int ")

        printer.Print("# Referenced at ").Println(location.source.to_string());

        printer.Print("-if class **.R$layout { int ")

            .Print(JavaClassGenerator::TransformToFieldName(location.name.entry))

            .Println(";");

            .Println("; }");

        printer.Print("-keep class ").Print(entry.first).Println(" { <init>(...); }");

      }

      printer.Undent();

      printer.Println("}");

      printer.Println();

    } else {

      for (const UsageLocation& location : entry.second) {

        printer.Print("# Referenced at ").Println(location.source.to_string());

      }

      printer.Print("-keep class ").Print(entry.first).Println(" { <init>(...); }");

    }

    printer.Println();

  }