message: hammer: fixed compilation errors
  TIL about C++:
  executing m[key()]=val(); for a std::map executes
  First key() then val() with Clang
  First val() then key() with GCC
  #wat
diff: @@ -10722,7 +10722,8 @@ class basic_json
  for (size_t i = 0; i < len; ++i)
  {
  get();
  - result[get_cbor_string()] = parse_cbor();
  + auto key = get_cbor_string();
  + result[key] = parse_cbor();
  }
  return result;
  }
  @@ -10734,7 +10735,8 @@ class basic_json
  for (size_t i = 0; i < len; ++i)
  {
  get();
  - result[get_cbor_string()] = parse_cbor();
  + auto key = get_cbor_string();
  + result[key] = parse_cbor();
  }
  return result;
  }
  @@ -10746,7 +10748,8 @@ class basic_json
  for (size_t i = 0; i < len; ++i)
  {
  get();
  - result[get_cbor_string()] = parse_cbor();
  + auto key = get_cbor_string();
  + result[key] = parse_cbor();
  }
  return result;
  }
  @@ -10758,7 +10761,8 @@ class basic_json
  for (size_t i = 0; i < len; ++i)
  {
  get();
  - result[get_cbor_string()] = parse_cbor();
  + auto key = get_cbor_string();
  + result[key] = parse_cbor();
  }
  return result;
  }
  @@ -10770,7 +10774,8 @@ class basic_json
  for (size_t i = 0; i < len; ++i)
  {
  get();
  - result[get_cbor_string()] = parse_cbor();
  + auto key = get_cbor_string();
  + result[key] = parse_cbor();
  }
  return result;
  }
  @@ -10780,7 +10785,8 @@ class basic_json
  basic_json result = value_t::object;
  while (get() != 0xff)
  {
  - result[get_cbor_string()] = parse_cbor();
  + auto key = get_cbor_string();
  + result[key] = parse_cbor();
  }
  return result;
  }
  