3cf36736e540cf06250701f0934a7946836d000d refactoring: move ReplayBlocks under CChainState (James O'Beirne)
bcf73d3b84649c8786f0cccc6862dd1bbdb9950b refactoring: move LoadChainTip to CChainState method (James O'Beirne)
f5809d5b135c7f9de5217d3cda76638fe7eed58a doc: fix CChainState::ActivateBestChain doc (James O'Beirne)
Pull request description:
This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):
Parent PR: #15606
Issue: #15605
Specification: https://github.com/jamesob/assumeutxo-docs/tree/master/proposal
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Move more chainstate-related functionality to methods on CChainState. Nothing too interesting here, but needed to work with multiple chainstates. And brief to review. :)
Also fixes doc on ActivateBestChain.
ACKs for top commit:
MarcoFalke:
ACK 3cf36736e540cf06250701f0934a7946836d000d
ryanofsky:
Can confirm. utACK 3cf36736e540cf06250701f0934a7946836d000d. Removes wrapper functions and removes more ::ChainActive() and ::ChainstateActive() calls than it adds, so seems good.
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Backport of Core PR16743