multi: use cache for source channels

routing/payment_lifecycle_test.go

@@ -472,8 +472,8 @@ func testPaymentLifecycle(t *testing.T, test paymentLifecycleTestCase,
 			Payer:              payer,
 			ChannelPruneExpiry: time.Hour * 24,
 			GraphPruneInterval: time.Hour * 2,
-			QueryBandwidth: func(e *channeldb.ChannelEdgeInfo) lnwire.MilliSatoshi {
-				return lnwire.NewMSatFromSatoshis(e.Capacity)
+			QueryBandwidth: func(c *channeldb.DirectedChannel) lnwire.MilliSatoshi {
+				return lnwire.NewMSatFromSatoshis(c.Capacity)
 			},
 			NextPaymentID: func() (uint64, error) {
 				next := atomic.AddUint64(&uniquePaymentID, 1)