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; 
     }; 
```
{
    AssertLockHeld(cs_main);
    const CBlockIndex *pindexOldTip = m_chain.Tip();
    const CBlockIndex *pindexFork = m_chain.FindFork(pindexMostWork);
    
    bool fBlocksDisconnected = false;
    DisconnectedBlockTransactions disconnectpool;
    while (m_chain.Tip() && m_chain.Tip() != pindexFork) {
        if (!DisconnectTip(state, chainparams, &disconnectpool)) {
            
            
            UpdateMempoolForReorg(disconnectpool, false);
            
            
            
            AbortNode(state, "Failed to disconnect block; see debug.log for details");
            return false;
        }
        fBlocksDisconnected = true;