It would be nice if there was a way to tell compilers not to drop the lock stack and thus issue warnings when accessing a symbol that needs a lock inside `Assume`/`Assert`.

Hit by (at least): @ajtowns , @jnewbery , me.
#ifndef BITCOIN_WALLET_TEST_WALLET_TEST_FIXTURE_H
#define BITCOIN_WALLET_TEST_WALLET_TEST_FIXTURE_H
#include <test/util/setup_common.h>
#include <interfaces/chain.h>
#include <interfaces/wallet.h>
#include <node/context.h>
#include <util/check.h>
#include <wallet/wallet.h>
#include <memory>
namespace wallet {
/** Testing setup and teardown for wallet.
 */
struct WalletTestingSetup : public TestingSetup {
    explicit WalletTestingSetup(const std::string& chainName = CBaseChainParams::MAIN);
    ~WalletTestingSetup();
    std::unique_ptr<interfaces::WalletLoader> m_wallet_loader = interfaces::MakeWalletLoader(*m_node.chain, *Assert(m_node.args));
    CWallet m_wallet;
    std::unique_ptr<interfaces::Handler> m_chain_notifications_handler;
};
} 
#endif