message: Avoid unused variable warning when assert is disabled.
diff: @@ -576,7 +576,7 @@ void ProcessGDBRemote::BuildDynamicRegisterInfo(bool force) {
  uint32_t ret_val =
  opcode_extractor.GetHexBytesAvail(dwarf_opcode_bytes);
  assert(dwarf_opcode_len == ret_val);
  -
  + UNUSED_IF_ASSERT_DISABLED(ret_val);
  reg_info.dynamic_size_dwarf_expr_bytes = dwarf_opcode_bytes.data();
  }
  }
  @@ -4213,7 +4213,7 @@ bool ParseRegisters(XMLNode feature_node, GdbServerTargetInfo &target_info,
  uint32_t ret_val =
  opcode_extractor.GetHexBytesAvail(dwarf_opcode_bytes);
  assert(dwarf_opcode_len == ret_val);
  -
  + UNUSED_IF_ASSERT_DISABLED(ret_val);
  reg_info.dynamic_size_dwarf_expr_bytes = dwarf_opcode_bytes.data();
  } else {
  printf("unhandled attribute %s = %s\n", name.data(), value.data());
  