core/state, core/vm: implement EIP 6780 (#27189)

EIP-6780: SELFDESTRUCT only in same transaction

>     SELFDESTRUCT will recover all funds to the caller but not delete the account, except when called in the same transaction as creation

---------

Co-authored-by: Martin Holst Swende <martin@swende.se>

core/state/state_object.go

@@ -86,6 +86,9 @@ type stateObject struct {
 	// or an account that is considered as empty will be marked as deleted at
 	// the end of transaction and no longer accessible anymore.
 	deleted bool
+
+	// Flag whether the object was created in the current transaction
+	created bool
 }
 
 // empty returns whether the account is considered empty.

core/state/statedb.go

@@ -493,6 +493,17 @@ func (s *StateDB) SelfDestruct(addr common.Address) {
 	stateObject.data.Balance = new(big.Int)
 }
 
+func (s *StateDB) Selfdestruct6780(addr common.Address) {
+	stateObject := s.getStateObject(addr)
+	if stateObject == nil {
+		return
+	}
+
+	if stateObject.created {
+		s.SelfDestruct(addr)
+	}
+}
+
 // SetTransientState sets transient storage for a given account. It
 // adds the change to the journal so that it can be rolled back
 // to its previous value if there is a revert.
@@ -681,6 +692,9 @@ func (s *StateDB) createObject(addr common.Address) (newobj, prev *stateObject)
 		delete(s.accountsOrigin, prev.addrHash)
 		delete(s.storagesOrigin, prev.addrHash)
 	}
+
+	newobj.created = true
+
 	s.setStateObject(newobj)
 	if prev != nil && !prev.deleted {
 		return newobj, prev
@@ -910,6 +924,7 @@ func (s *StateDB) Finalise(deleteEmptyObjects bool) {
 		} else {
 			obj.finalise(true) // Prefetch slots in the background
 		}
+		obj.created = false
 		s.stateObjectsPending[addr] = struct{}{}
 		s.stateObjectsDirty[addr] = struct{}{}