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_processor.go

@@ -57,13 +57,13 @@ func NewStateProcessor(config *params.ChainConfig, bc *BlockChain) *StateProcess
 // Process returns the receipts and logs accumulated during the process and
 // returns the amount of gas that was used in the process. If any of the
 // transactions failed to execute due to insufficient gas it will return an error.
-func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg vm.Config) (types.Receipts, vm.Logs, *big.Int, error) {
+func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg vm.Config) (types.Receipts, []*types.Log, *big.Int, error) {
 	var (
 		receipts     types.Receipts
 		totalUsedGas = big.NewInt(0)
 		err          error
 		header       = block.Header()
-		allLogs      vm.Logs
+		allLogs      []*types.Log
 		gp           = new(GasPool).AddGas(block.GasLimit())
 	)
 	// Mutate the the block and state according to any hard-fork specs