scripted-diff: Wallet: Rename incorrectly named *UsedDestination

These functions are used to mark/check if a key of our own has been used to spend (and only for avoid-reuse wallets), which has nothing to do with the destination/address itself.
Give them more accurate names to avoid confusion.

-BEGIN VERIFY SCRIPT-
sed -i -e 's/UsedDestination/SpentKey/g' $(git grep -l 'UsedDestination' ./src)
-END VERIFY SCRIPT-

1 files changed, 1 insertions, 1 deletions

diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index e8905e781c..38bc251d23 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -2925,7 +2925,7 @@ static UniValue listunspent(const JSONRPCRequest& request)
         CTxDestination address;
         const CScript& scriptPubKey = out.tx->tx->vout[out.i].scriptPubKey;
         bool fValidAddress = ExtractDestination(scriptPubKey, address);
-        bool reused = avoid_reuse && pwallet->IsUsedDestination(out.tx->GetHash(), out.i);
+        bool reused = avoid_reuse && pwallet->IsSpentKey(out.tx->GetHash(), out.i);
 
         if (destinations.size() && (!fValidAddress || !destinations.count(address)))
             continue;