typo: fix struct names in comments (#2256)

core/state/shared_pool.go

@@ -6,7 +6,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 )
 
-// sharedPool is used to store maps of originStorage of stateObjects
+// StoragePool is used to store maps of originStorage of stateObjects
 type StoragePool struct {
 	sync.RWMutex
 	sharedMap map[common.Address]*sync.Map

core/vm/contracts_lightclient.go

@@ -124,7 +124,7 @@ func (c *iavlMerkleProofValidate) Run(input []byte) (result []byte, err error) {
 	return c.basicIavlMerkleProofValidate.Run(input)
 }
 
-// tmHeaderValidate implemented as a native contract.
+// tmHeaderValidateNano implemented as a native contract.
 type tmHeaderValidateNano struct{}
 
 func (c *tmHeaderValidateNano) RequiredGas(input []byte) uint64 {

metrics/gauge.go

@@ -2,12 +2,12 @@ package metrics
 
 import "sync/atomic"
 
-// gaugeSnapshot contains a readonly int64.
+// GaugeSnapshot contains a readonly int64.
 type GaugeSnapshot interface {
 	Value() int64
 }
 
-// Gauges hold an int64 value that can be set arbitrarily.
+// Gauge hold an int64 value that can be set arbitrarily.
 type Gauge interface {
 	Snapshot() GaugeSnapshot
 	Update(int64)

p2p/discover/metrics.go

@@ -44,7 +44,7 @@ func init() {
 	}
 }
 
-// meteredConn is a wrapper around a net.UDPConn that meters both the
+// meteredUdpConn is a wrapper around a net.UDPConn that meters both the
 // inbound and outbound network traffic.
 type meteredUdpConn struct {
 	UDPConn