Comply EIP-86 with the new definition (#9140)

* Comply EIP-86 with the new CREATE2 opcode

* Fix rpc compile

* Fix interpreter CREATE/CREATE2 stack pop difference

* Add unreachable! to fix compile

* Fix instruction_info

* Fix gas check due to new stack item

* Add new tests in executive

* Fix have_create2 comment

* Remove all unused references of eip86_transition and block_number

ethcore/src/machine.rs

@@ -310,12 +310,8 @@ impl EthereumMachine {
 	}
 
 	/// Returns new contract address generation scheme at given block number.
-	pub fn create_address_scheme(&self, number: BlockNumber) -> CreateContractAddress {
-		if number >= self.params().eip86_transition {
-			CreateContractAddress::FromCodeHash
-		} else {
-			CreateContractAddress::FromSenderAndNonce
-		}
+	pub fn create_address_scheme(&self, _number: BlockNumber) -> CreateContractAddress {
+		CreateContractAddress::FromSenderAndNonce
 	}
 
 	/// Verify a particular transaction is valid, regardless of order.