message: Fix param lowering leak
  Summary: The implicit-this load-param method item entry and instruction were leaked.
diff: @@ -219,7 +219,7 @@ void check_load_params(DexMethod* method) {
  if (!is_static(method)) {
  auto op = it->insn->opcode();
  always_assert(op == IOPCODE_LOAD_PARAM_OBJECT);
  - it.reset(code->erase(it.unwrap()));
  + it.reset(code->erase_and_dispose(it.unwrap()));
  ++next_ins;
  }
  auto args_it = args_list->begin();
  