Block index entry of the last block flushed to disk.
Declared in <validation.h>
<validation.h>
[[guarded_by(0x7f9513ab6038), guarded_by(0x7f9502c990a8), guarded_by(0x7f952544add8), guarded_by(0x7f95174010b8)]] CBlockIndex const* m_last_flushed_block = {nullptr};