test: Require standard txs in regtest

src/chainparams.h

@@ -66,6 +66,8 @@ public:
     bool DefaultConsistencyChecks() const { return fDefaultConsistencyChecks; }
     /** Policy: Filter transactions that do not match well-defined patterns */
     bool RequireStandard() const { return fRequireStandard; }
+    /** If this is a test chain */
+    bool IsTestChain() const { return m_is_test_chain; }
     uint64_t PruneAfterHeight() const { return nPruneAfterHeight; }
     /** Minimum free space (in GB) needed for data directory */
     uint64_t AssumedBlockchainSize() const { return m_assumed_blockchain_size; }
@@ -101,6 +103,7 @@ protected:
     std::vector<SeedSpec6> vFixedSeeds;
     bool fDefaultConsistencyChecks;
     bool fRequireStandard;
+    bool m_is_test_chain;
     CCheckpointData checkpointData;
     ChainTxData chainTxData;
     bool m_fallback_fee_enabled;