scripted-diff: rename vTxHashes to txns_randomized

-BEGIN VERIFY SCRIPT-
git grep -l "vTxHashesIdx" src | xargs sed -i "s/vTxHashesIdx/idx_randomized/g"
git grep -l "vTxHashes" src | xargs sed -i "s/vTxHashes/txns_randomized/g"
-END VERIFY SCRIPT-

src/test/blockencodings_tests.cpp

@@ -51,7 +51,7 @@ static CBlock BuildBlockTestCase() {
 }
 
 // Number of shared use_counts we expect for a tx we haven't touched
-// (block + mempool entry + mempool vTxHashes + our copy from the GetSharedTx call)
+// (block + mempool entry + mempool txns_randomized + our copy from the GetSharedTx call)
 constexpr long SHARED_TX_OFFSET{4};
 
 BOOST_AUTO_TEST_CASE(SimpleRoundTripTest)