Add compile time checking for all cs_main runtime locking assertions

src/validationinterface.h

@@ -7,10 +7,12 @@
 #define BITCOIN_VALIDATIONINTERFACE_H
 
 #include <primitives/transaction.h> // CTransaction(Ref)
+#include <sync.h>
 
 #include <functional>
 #include <memory>
 
+extern CCriticalSection cs_main;
 class CBlock;
 class CBlockIndex;
 struct CBlockLocator;
@@ -51,7 +53,7 @@ void CallFunctionInValidationInterfaceQueue(std::function<void ()> func);
  *     });
  *     promise.get_future().wait();
  */
-void SyncWithValidationInterfaceQueue();
+void SyncWithValidationInterfaceQueue() LOCKS_EXCLUDED(cs_main);
 
 /**
  * Implement this to subscribe to events generated in validation