merge-script 4c573e5718
Merge bitcoin/bitcoin#30306: fuzz: Improve stability for txorphan and mini_miner harnesses
e009bf681c0e38a6451afa594ba3c7c8861f61c3 Don't use iterator addresses in IteratorComparator (dergoegge)

Pull request description:

  See #29018.

  Stability for `txorphan` is now >90%. `mini_miner` needs further investigation, stability still low (although slightly improved by this PR) at ~62%.

ACKs for top commit:
  marcofleon:
    Tested ACK e009bf681c0e38a6451afa594ba3c7c8861f61c3. Using afl++, stability for `txorphan` went from 82% to ~94% and for `mini_miner` it went from 84% to 97%. I ran them both using the corpora in qa-assets.
  glozow:
    utACK e009bf681c0e38a6451afa594ba3c7c8861f61c3

Tree-SHA512: 6d0a20fd7ceedca8e702d8adde5fca500d8b0187147aee8d43b4e9eb5176dcacf60180f42a7158f037d18dbb27e479b6c069a0f3c912226505cbff5aa073a415
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src/node/

The src/node/ directory contains code that needs to access node state (state in CChain, CBlockIndex, CCoinsView, CTxMemPool, and similar classes).

Code in src/node/ is meant to be segregated from code in src/wallet/ and src/qt/, to ensure wallet and GUI code changes don't interfere with node operation, to allow wallet and GUI code to run in separate processes, and to perhaps eventually allow wallet and GUI code to be maintained in separate source repositories.

As a rule of thumb, code in one of the src/node/, src/wallet/, or src/qt/ directories should avoid calling code in the other directories directly, and only invoke it indirectly through the more limited src/interfaces/ classes.

This directory is at the moment sparsely populated. Eventually more substantial files like src/validation.cpp and src/txmempool.cpp might be moved there.