MASP vp multiple txs

.changelog/unreleased/bug-fixes/2621-fix-nullifier-check.md

@@ -0,0 +1,2 @@
+- Fixed a bug in the masp vp that allowed a shielding transaction to reveal
+  nullifiers. ([\#2621](https://github.com/anoma/namada/pull/2621))

.changelog/unreleased/improvements/2690-multi-tx-masp-vp.md

@@ -0,0 +1,2 @@
+- Updated the masp vp to accept multiple transfers in a single transaction.
+  ([\#2690](https://github.com/anoma/namada/pull/2690))

crates/namada/src/ledger/native_vp/ethereum_bridge/bridge_pool_vp.rs

@@ -32,7 +32,7 @@ use namada_tx::Tx;
 use crate::address::{Address, InternalAddress};
 use crate::eth_bridge_pool::{PendingTransfer, TransferToEthereumKind};
 use crate::ethereum_events::EthAddress;
-use crate::ledger::native_vp::{Ctx, NativeVp, StorageReader};
+use crate::ledger::native_vp::{Ctx, NativeVp, SignedAmount, StorageReader};
 use crate::storage::Key;
 use crate::token::storage_key::balance_key;
 use crate::token::Amount;
@@ -43,13 +43,6 @@ use crate::vm::WasmCacheAccess;
 /// Generic error that may be returned by the validity predicate
 pub struct Error(#[from] eyre::Error);
 
-/// A positive or negative amount
-#[derive(Copy, Clone)]
-enum SignedAmount {
-    Positive(Amount),
-    Negative(Amount),
-}
-
 /// An [`Amount`] that has been updated with some delta value.
 #[derive(Copy, Clone)]
 struct AmountDelta {