message: Backport to unstable
  Summary: This fixes an issue with the type erased classes at InterDex time that don't end up being merged and are never initialized, should still be added (in this case to the last one).
diff: @@ -587,7 +587,13 @@ DexClassesVector run_interdex(InterDexPass* pass,
  4,
  "IDEX: Emitting plugin generated leftover class :: %s\n",
  SHOW(add_class));
  - emit_class(pass, det, outdex, add_class);
  + emit_class(
  + pass,
  + det,
  + outdex,
  + add_class,
  + false, /* not primary */
  + false /* shouldn't skip */);
  }
  }
  