CorruptionPossible -> BLOCK_MUTATED

Co-authored-by: Anthony Towns <aj@erisian.com.au>

src/blockencodings.cpp

@@ -203,7 +203,7 @@ ReadStatus PartiallyDownloadedBlock::FillBlock(CBlock& block, const std::vector<
         // but that is expensive, and CheckBlock caches a block's
         // "checked-status" (in the CBlock?). CBlock should be able to
         // check its own merkle root and cache that check.
-        if (state.CorruptionPossible())
+        if (state.GetReason() == ValidationInvalidReason::BLOCK_MUTATED)
             return READ_STATUS_FAILED; // Possible Short ID collision
         return READ_STATUS_CHECKBLOCK_FAILED;
     }

src/validation.cpp

@@ -1290,7 +1290,7 @@ void static InvalidChainFound(CBlockIndex* pindexNew) EXCLUSIVE_LOCKS_REQUIRED(c
 }
 
 void CChainState::InvalidBlockFound(CBlockIndex *pindex, const CValidationState &state) {
-    if (!state.CorruptionPossible()) {
+    if (state.GetReason() != ValidationInvalidReason::BLOCK_MUTATED) {
         pindex->nStatus |= BLOCK_FAILED_VALID;
         m_failed_blocks.insert(pindex);
         setDirtyBlockIndex.insert(pindex);
@@ -1791,7 +1791,7 @@ bool CChainState::ConnectBlock(const CBlock& block, CValidationState& state, CBl
     // re-enforce that rule here (at least until we make it impossible for
     // GetAdjustedTime() to go backward).
     if (!CheckBlock(block, state, chainparams.GetConsensus(), !fJustCheck, !fJustCheck)) {
-        if (state.CorruptionPossible()) {
+        if (state.GetReason() == ValidationInvalidReason::BLOCK_MUTATED) {
             // We don't write down blocks to disk if they may have been
             // corrupted, so this should be impossible unless we're having hardware
             // problems.
@@ -2570,7 +2570,7 @@ bool CChainState::ActivateBestChainStep(CValidationState& state, const CChainPar
             if (!ConnectTip(state, chainparams, pindexConnect, pindexConnect == pindexMostWork ? pblock : std::shared_ptr<const CBlock>(), connectTrace, disconnectpool)) {
                 if (state.IsInvalid()) {
                     // The block violates a consensus rule.
-                    if (!state.CorruptionPossible()) {
+                    if (state.GetReason() != ValidationInvalidReason::BLOCK_MUTATED) {
                         InvalidChainFound(vpindexToConnect.front());
                     }
                     state = CValidationState();
@@ -3509,7 +3509,7 @@ bool CChainState::AcceptBlock(const std::shared_ptr<const CBlock>& pblock, CVali
 
     if (!CheckBlock(block, state, chainparams.GetConsensus()) ||
         !ContextualCheckBlock(block, state, chainparams.GetConsensus(), pindex->pprev)) {
-        if (state.IsInvalid() && !state.CorruptionPossible()) {
+        if (state.IsInvalid() && state.GetReason() != ValidationInvalidReason::BLOCK_MUTATED) {
             pindex->nStatus |= BLOCK_FAILED_VALID;
             setDirtyBlockIndex.insert(pindex);
         }