core/vm: implement metropolis static call opcode

core/vm/opcodes.go

@@ -201,6 +201,7 @@ const (
 	CALLCODE
 	RETURN
 	DELEGATECALL
+	STATICCALL = 0xfa
 
 	SELFDESTRUCT = 0xff
 )
@@ -355,6 +356,7 @@ var opCodeToString = map[OpCode]string{
 	RETURN:       "RETURN",
 	CALLCODE:     "CALLCODE",
 	DELEGATECALL: "DELEGATECALL",
+	STATICCALL:   "STATICCALL",
 	SELFDESTRUCT: "SELFDESTRUCT",
 
 	PUSH: "PUSH",
@@ -405,6 +407,7 @@ var stringToOp = map[string]OpCode{
 	"CALLDATASIZE": CALLDATASIZE,
 	"CALLDATACOPY": CALLDATACOPY,
 	"DELEGATECALL": DELEGATECALL,
+	"STATICCALL":   STATICCALL,
 	"CODESIZE":     CODESIZE,
 	"CODECOPY":     CODECOPY,
 	"GASPRICE":     GASPRICE,