error when package name same with message name in rpc service

[soxft]

Describe the bug

when package name is same with message name in example.proto, and generate code with goctl.

then it will throw 'xxx redeclared in this block'

To Reproduce
Steps to reproduce the behavior, if applicable:

1. The code is

proto file looks like:

syntax = "proto3";

package video;

option go_package = "./video";

message Video {
  int64 id = 1;
  // User author = 2;
  int64 user_id = 2;
  string play_url = 3;
  string cover_url = 4;
  string title = 8;
}

message feedReq {
  int64 latest_time = 1;
}
message feedResp {
  repeated Video video_list = 3;
  optional int64 next_time = 4;
}


service video {
  rpc feed(feedReq) returns (feedResp);
}

And in /path/to/video/videoclient/video.go

type (
	Video              = video.Video

	Video interface {
		Feed(ctx context.Context, in *FeedReq, opts ...grpc.CallOption) (*FeedResp, error)
	}
)

2. The error is

Video interface and video message conflict

Environments (please complete the following information):

• darwin/arm64
• go-zero version latest
• goctl version 1.4.3 darwin/arm64

More description

I think when message name is same as package name，goctl should give a suffix to message type name