Send proper sync message for edit msg in all contexts

ts/textsecure/Errors.ts

@@ -199,7 +199,9 @@ export class SendMessageProtoError extends Error implements CallbackResultType {
 
   public readonly unidentifiedDeliveries?: Array<string>;
 
-  public readonly dataMessage?: Uint8Array;
+  public readonly dataMessage: Uint8Array | undefined;
+
+  public readonly editMessage: Uint8Array | undefined;
 
   // Fields necessary for send log save
   public readonly contentHint?: number;
@@ -218,6 +220,7 @@ export class SendMessageProtoError extends Error implements CallbackResultType {
     errors,
     unidentifiedDeliveries,
     dataMessage,
+    editMessage,
     contentHint,
     contentProto,
     timestamp,
@@ -231,6 +234,7 @@ export class SendMessageProtoError extends Error implements CallbackResultType {
     this.errors = errors;
     this.unidentifiedDeliveries = unidentifiedDeliveries;
     this.dataMessage = dataMessage;
+    this.editMessage = editMessage;
     this.contentHint = contentHint;
     this.contentProto = contentProto;
     this.timestamp = timestamp;

ts/textsecure/SendMessage.ts

@@ -2027,8 +2027,13 @@ export default class MessageSender {
         ? Proto.DataMessage.encode(proto.dataMessage).finish()
         : undefined;
 
+      const editMessage = proto.editMessage
+        ? Proto.EditMessage.encode(proto.editMessage).finish()
+        : undefined;
+
       return Promise.resolve({
         dataMessage,
+        editMessage,
         errors: [],
         failoverIdentifiers: [],
         successfulIdentifiers: [],

ts/textsecure/Types.d.ts

@@ -250,8 +250,8 @@ export type CallbackResultType = {
   failoverIdentifiers?: Array<string>;
   errors?: Array<CustomError>;
   unidentifiedDeliveries?: Array<string>;
-  dataMessage?: Uint8Array;
-  editMessage?: Uint8Array;
+  dataMessage: Uint8Array | undefined;
+  editMessage: Uint8Array | undefined;
 
   // If this send is not the final step in a multi-step send, we shouldn't treat its
   //   results we would treat a one-step send.