Fix test and avoid change to array signatures

typed_array.go.erb was not updated back in
a8802b16cc when Value, EncodeBinary,
EncodeText, and MarshalJSON were changed to be defined on T instead of
*T. This has been corrected.

enum_array.go

@@ -136,7 +136,7 @@ func (dst *EnumArray) DecodeText(ci *ConnInfo, src []byte) error {
 	return nil
 }
 
-func (src *EnumArray) EncodeText(ci *ConnInfo, buf []byte) ([]byte, error) {
+func (src EnumArray) EncodeText(ci *ConnInfo, buf []byte) ([]byte, error) {
 	switch src.Status {
 	case Null:
 		return nil, nil
@@ -212,7 +212,7 @@ func (dst *EnumArray) Scan(src interface{}) error {
 }
 
 // Value implements the database/sql/driver Valuer interface.
-func (src *EnumArray) Value() (driver.Value, error) {
+func (src EnumArray) Value() (driver.Value, error) {
 	buf, err := src.EncodeText(nil, nil)
 	if err != nil {
 		return nil, err