internal/descopts,internal/impl: remove shorthand import aliases

Commit 784c4825545540dc41a1dc85715d3251903bc8ce apparently missed a spot.

Change-Id: Id4e68569e83cc1429532f8178dfdd8b9872570d9
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/606995
Reviewed-by: Lasse Folger <lassefolger@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
diff --git a/internal/descopts/options.go b/internal/descopts/options.go
index 8401be8..024ffeb 100644
--- a/internal/descopts/options.go
+++ b/internal/descopts/options.go
@@ -9,7 +9,7 @@
 // dependency on the descriptor proto package).
 package descopts
 
-import pref "google.golang.org/protobuf/reflect/protoreflect"
+import "google.golang.org/protobuf/reflect/protoreflect"
 
 // These variables are set by the init function in descriptor.pb.go via logic
 // in internal/filetype. In other words, so long as the descriptor proto package
@@ -17,13 +17,13 @@
 //
 // Each variable is populated with a nil pointer to the options struct.
 var (
-	File           pref.ProtoMessage
-	Enum           pref.ProtoMessage
-	EnumValue      pref.ProtoMessage
-	Message        pref.ProtoMessage
-	Field          pref.ProtoMessage
-	Oneof          pref.ProtoMessage
-	ExtensionRange pref.ProtoMessage
-	Service        pref.ProtoMessage
-	Method         pref.ProtoMessage
+	File           protoreflect.ProtoMessage
+	Enum           protoreflect.ProtoMessage
+	EnumValue      protoreflect.ProtoMessage
+	Message        protoreflect.ProtoMessage
+	Field          protoreflect.ProtoMessage
+	Oneof          protoreflect.ProtoMessage
+	ExtensionRange protoreflect.ProtoMessage
+	Service        protoreflect.ProtoMessage
+	Method         protoreflect.ProtoMessage
 )
diff --git a/internal/impl/convert.go b/internal/impl/convert.go
index e06ece5..f72ddd8 100644
--- a/internal/impl/convert.go
+++ b/internal/impl/convert.go
@@ -322,7 +322,7 @@
 	return protoreflect.ValueOfString(v.Convert(stringType).String())
 }
 func (c *stringConverter) GoValueOf(v protoreflect.Value) reflect.Value {
-	// pref.Value.String never panics, so we go through an interface
+	// protoreflect.Value.String never panics, so we go through an interface
 	// conversion here to check the type.
 	s := v.Interface().(string)
 	if c.goType.Kind() == reflect.Slice && s == "" {