Merge #11713: Fix for mismatched extern definition in wallet tests

f94c2ec Fix for mismatched extern definition in wallet test classes which was breaking msvc linking. (Aaron Clauson)

Pull request description:

  The extern declarations are using a raw pointer which doesn't match the source variable's std::unqiue_ptr.

Tree-SHA512: 1500ffa1282ee6565741bf2f8f9def68a355346c8e4a667e1167d3d550eb0b732e8cba52fbef380a92c860e686d36da877d800ee5f2fc1e4dd8fd88fbe170644

src/wallet/test/accounting_tests.cpp

@@ -10,7 +10,7 @@
 
 #include <boost/test/unit_test.hpp>
 
-extern CWallet* pwalletMain;
+extern std::unique_ptr<CWallet> pwalletMain;
 
 BOOST_FIXTURE_TEST_SUITE(accounting_tests, WalletTestingSetup)
 

src/wallet/test/wallet_tests.cpp

@@ -19,7 +19,7 @@
 #include <boost/test/unit_test.hpp>
 #include <univalue.h>
 
-extern CWallet* pwalletMain;
+extern std::unique_ptr<CWallet> pwalletMain;
 
 extern UniValue importmulti(const JSONRPCRequest& request);
 extern UniValue dumpwallet(const JSONRPCRequest& request);