scripted-diff: rename CChainState -> Chainstate

-BEGIN VERIFY SCRIPT-
sed -i 's/CChainState/Chainstate/g' $(git grep -l CChainState ':(exclude)doc/release-notes*')
-END VERIFY SCRIPT-

Co-authored-by: MacroFake <falke.marco@gmail.com>

src/kernel/mempool_persist.cpp

@@ -37,7 +37,7 @@ namespace kernel {
 
 static const uint64_t MEMPOOL_DUMP_VERSION = 1;
 
-bool LoadMempool(CTxMemPool& pool, const fs::path& load_path, CChainState& active_chainstate, FopenFn mockable_fopen_function)
+bool LoadMempool(CTxMemPool& pool, const fs::path& load_path, Chainstate& active_chainstate, FopenFn mockable_fopen_function)
 {
     if (load_path.empty()) return false;
 

src/kernel/mempool_persist.h

@@ -7,7 +7,7 @@
 
 #include <fs.h>
 
-class CChainState;
+class Chainstate;
 class CTxMemPool;
 
 namespace kernel {
@@ -19,7 +19,7 @@ bool DumpMempool(const CTxMemPool& pool, const fs::path& dump_path,
 
 /** Load the mempool from disk. */
 bool LoadMempool(CTxMemPool& pool, const fs::path& load_path,
-                 CChainState& active_chainstate,
+                 Chainstate& active_chainstate,
                  fsbridge::FopenFn mockable_fopen_function = fsbridge::fopen);
 
 } // namespace kernel