Change Details

Tip: versionbitscache is currently a global so we didn't need to pass it in to any of ::VersionBitsTip*'s callers Notes: - I had to restore `versionbitscache` in validation.h, removed in D2783. - `VersionBitsBlockState` was not used anywhere. It was introduced and used in D5282, then `minerfund.cpp` was deleted then added again but without using that function. This is a backport of [[https://github.com/bitcoin/bitcoin/pull/21055 | core#21055]] [6/16] https://github.com/bitcoin/bitcoin/pull/21055/commits/31eac50c721dd3b0bd2347e76196bf16913e9be9 Depends on D11210

Tip: versionbitscache is currently a global so we didn't need to pass it in to any of ::VersionBitsTip*'s callers Notes: - I had to restore `versionbitscache` in validation.h, removed in D2783. - `VersionBitsBlockState` was not used anywhere. It was introduced and used in D5282, then `minerfund.cpp` was deleted then added again but without using that function. This is a backport of [[https://github.com/bitcoin/bitcoin/pull/21055 | core#21055]] [6/16] https://github.com/bitcoin/bitcoin/pull/21055/commits/31eac50c721dd3b0bd2347e76196bf16913e9be9 Depends on D11210

Tip: versionbitscache is currently a global so we didn't need to pass it in to any of ::VersionBitsTip*'s callers Notes: - I had to restore `versionbitscache` in validation.h, removed in D2783. - `VersionBitsBlockState` was not used anywhere. It was introduced and used in D5282, then `minerfund.cpp` was deleted then added again but without using that function. This is a backport of [[https://github.com/bitcoin/bitcoin/pull/21055 | core#21055]] [6/16] https://github.com/bitcoin/bitcoin/pull/21055/commits/31eac50c721dd3b0bd2347e76196bf16913e9be9 Depends on D11210