[#708] morph/client: Update last epoch block method name

Signed-off-by: Alex Vanin <alexey@nspcc.ru>

pkg/morph/client/netmap/client.go

@@ -40,7 +40,7 @@ type cfg struct {
 	epochSnapshotMethod, // get network map snapshot by epoch method name
 	updateStateMethod, // update state method name for invocation
 	epochMethod, // get epoch number method name
-	epochBlockMethod, // get epoch number method name
+	lastEpochBlockMethod, // get last epoch number method name
 	updateInnerRing, // update innerring method name
 	setConfigMethod, // set config method name
 	configMethod string // get config value method name
@@ -50,7 +50,7 @@ const (
 	defaultAddPeerMethod         = "addPeer"          // default add peer method name
 	defaultConfigMethod          = "config"           // default get config value method name
 	defaultEpochMethod           = "epoch"            // default get epoch number method name
-	defaultEpochBlockMethod      = "epochBlock"       // default get epoch block number method name
+	defaultLastEpochBlockMethod  = "lastEpochBlock"   // default get last epoch block number method name
 	defaultInnerRingListMethod   = "innerRingList"    // default get innerring list method name
 	defaultNetMapCandidateMethod = "netmapCandidates" // default get network candidates method name
 	defaultNetMapMethod          = "netmap"           // default get network map method name
@@ -68,7 +68,7 @@ func defaultConfig() *cfg {
 		addPeerMethod:          defaultAddPeerMethod,
 		configMethod:           defaultConfigMethod,
 		epochMethod:            defaultEpochMethod,
-		epochBlockMethod:       defaultEpochBlockMethod,
+		lastEpochBlockMethod:   defaultLastEpochBlockMethod,
 		innerRingList:          defaultInnerRingListMethod,
 		netMapCandidatesMethod: defaultNetMapCandidateMethod,
 		netMapMethod:           defaultNetMapMethod,

pkg/morph/client/netmap/epoch.go

@@ -67,21 +67,21 @@ func (c *Client) Epoch(_ EpochArgs) (*EpochValues, error) {
 // LastEpochBlock performs the test invoke of get epoch block number
 // method of NeoFS Netmap contract.
 func (c *Client) LastEpochBlock(_ EpochBlockArgs) (*EpochBlockValues, error) {
-	items, err := c.client.TestInvoke(c.epochBlockMethod)
+	items, err := c.client.TestInvoke(c.lastEpochBlockMethod)
 	if err != nil {
 		return nil, fmt.Errorf("could not perform test invocation (%s): %w",
-			c.epochBlockMethod, err)
+			c.lastEpochBlockMethod, err)
 	}
 
 	if ln := len(items); ln != 1 {
 		return nil, fmt.Errorf("unexpected stack item count (%s): %d",
-			c.epochBlockMethod, ln)
+			c.lastEpochBlockMethod, ln)
 	}
 
 	block, err := client.IntFromStackItem(items[0])
 	if err != nil {
 		return nil, fmt.Errorf("could not get number from stack item (%s): %w",
-			c.epochBlockMethod, err)
+			c.lastEpochBlockMethod, err)
 	}
 
 	return &EpochBlockValues{