message: Implement PartialEq for BackendError
diff: @@ -157,7 +157,7 @@ pub trait Querier {
  /// attached.
  pub type BackendResult<T> = (core::result::Result<T, BackendError>, GasInfo);
  -#[derive(Error, Debug)]
  +#[derive(Error, Debug, PartialEq)]
  pub enum BackendError {
  #[error("Panic in FFI call")]
  ForeignPanic {},
  