core/vm: move Log to core/types

This significantly reduces the dependency closure of ethclient, which no
longer depends on core/vm as of this change.

All uses of vm.Logs are replaced by []*types.Log. NewLog is gone too,
the constructor simply returned a literal.

core/state/statedb_test.go

@@ -29,7 +29,7 @@ import (
 	"testing/quick"
 
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core/vm"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 )
 
@@ -221,7 +221,7 @@ func newTestAction(addr common.Address, r *rand.Rand) testAction {
 			fn: func(a testAction, s *StateDB) {
 				data := make([]byte, 2)
 				binary.BigEndian.PutUint16(data, uint16(a.args[0]))
-				s.AddLog(&vm.Log{Address: addr, Data: data})
+				s.AddLog(&types.Log{Address: addr, Data: data})
 			},
 			args: make([]int64, 1),
 		},