https://github.com/bitcoin/bitcoin/blob/68f3c7eb080e461cfeac37f8db7034fe507241d0/src/prevector.h#L152-L158

I'm opening an issue as its fix is too tiny to become a pull request.

Can be solved by renaming the struct to
```c
     struct indirect_contents { 
         size_type capacity; 
         char* indirect; 
     }; 
```
{
    const CTransaction& tx = *ws.m_ptx;
    const uint256& hash = ws.m_hash;
    TxValidationState &state = args.m_state;
    const bool bypass_limits = args.m_bypass_limits;
    CTxMemPool::setEntries& allConflicting = ws.m_all_conflicting;
    CTxMemPool::setEntries& setAncestors = ws.m_ancestors;
    const CAmount& nModifiedFees = ws.m_modified_fees;
    const CAmount& nConflictingFees = ws.m_conflicting_fees;
    const size_t& nConflictingSize = ws.m_conflicting_size;
    const bool fReplacementTransaction = ws.m_replacement_transaction;