cmd/evm, core/vm, test: refactored VM and core

* Moved `vm.Transfer` to `core` package and changed execution to call
`env.Transfer` instead of `core.Transfer` directly.
* core/vm: byte code VM moved to jump table instead of switch
* Moved `vm.Transfer` to `core` package and changed execution to call
  `env.Transfer` instead of `core.Transfer` directly.
* Byte code VM now shares the same code as the JITVM
* Renamed Context to Contract
* Changed initialiser of state transition & unexported methods
* Removed the Execution object and refactor `Call`, `CallCode` &
  `Create` in to their own functions instead of being methods.
* Removed the hard dep on the state for the VM. The VM now
  depends on a Database interface returned by the environment. In the
  process the core now depends less on the statedb by usage of the env
* Moved `Log` from package `core/state` to package `core/vm`.

1 files changed, 2 insertions, 2 deletions

diff --git a/tests/vm_test_util.go b/tests/vm_test_util.go
index 71a4f5e33..b61995e31 100644
--- a/tests/vm_test_util.go
+++ b/tests/vm_test_util.go
@@ -185,7 +185,7 @@ func runVmTest(test VmTest) error {
 		ret  []byte
 		gas  *big.Int
 		err  error
-		logs state.Logs
+		logs vm.Logs
 	)
 
 	ret, logs, gas, err = RunVm(statedb, env, test.Exec)
@@ -234,7 +234,7 @@ func runVmTest(test VmTest) error {
 	return nil
 }
 
-func RunVm(state *state.StateDB, env, exec map[string]string) ([]byte, state.Logs, *big.Int, error) {
+func RunVm(state *state.StateDB, env, exec map[string]string) ([]byte, vm.Logs, *big.Int, error) {
 	var (
 		to    = common.HexToAddress(exec["address"])
 		from  = common.HexToAddress(exec["caller"])