message: add Mechine::release_locations_keep_state test
diff: @@ -419,3 +419,19 @@ impl Machine {
  }
  }
  }
  +
  +#[cfg(test)]
  +mod test {
  + use super::*;
  + use dynasmrt::x64::Assembler;
  +
  + #[test]
  + fn test_release_locations_keep_state_nopanic() {
  + let mut mechine = Machine::new();
  + let mut assembler = Assembler::new().unwrap();
  + let locs = mechine.acquire_locations(&mut assembler, &[WpType::I32; 10], false);
  +
  + mechine.release_locations_keep_state(&mut assembler, &locs);
  + }
  +
  +}
  