Add src/node/* code to node:: namespace

src/node/miner.h

@@ -23,6 +23,7 @@ class CScript;
 
 namespace Consensus { struct Params; };
 
+namespace node {
 static const bool DEFAULT_PRINTPRIORITY = false;
 
 struct CBlockTemplate
@@ -206,5 +207,6 @@ int64_t UpdateTime(CBlockHeader* pblock, const Consensus::Params& consensusParam
 
 /** Update an old GenerateCoinbaseCommitment from CreateNewBlock after the block txs have changed */
 void RegenerateCommitments(CBlock& block, ChainstateManager& chainman);
+} // namespace node
 
 #endif // BITCOIN_NODE_MINER_H