Use correct struct for MergeCommentEvent.MergeRequest (#245)

events.go

@@ -230,7 +230,58 @@ type MergeCommentEvent struct {
 		StDiff       *Diff  `json:"st_diff"`
 		URL          string `json:"url"`
 	} `json:"object_attributes"`
-	MergeRequest *MergeRequest `json:"merge_request"`
+	MergeRequest struct {
+		ID              int       `json:"id"`
+		TargetBranch    string    `json:"target_branch"`
+		SourceBranch    string    `json:"source_branch"`
+		SourceProjectID int       `json:"source_project_id"`
+		AuthorID        int       `json:"author_id"`
+		AssigneeID      int       `json:"assignee_id"`
+		Title           string    `json:"title"`
+		CreatedAt       string    `json:"created_at"` // Should be *time.Time (see Gitlab issue #21468)
+		UpdatedAt       string    `json:"updated_at"` // Should be *time.Time (see Gitlab issue #21468)
+		StCommits       []*Commit `json:"st_commits"`
+		StDiffs         []*Diff   `json:"st_diffs"`
+		MilestoneID     int       `json:"milestone_id"`
+		State           string    `json:"state"`
+		MergeStatus     string    `json:"merge_status"`
+		TargetProjectID int       `json:"target_project_id"`
+		Iid             int       `json:"iid"`
+		Description     string    `json:"description"`
+		Position        int       `json:"position"`
+		LockedAt        string    `json:"locked_at"`
+		UpdatedByID     int       `json:"updated_by_id"`
+		MergeError      string    `json:"merge_error"`
+		MergeParams     struct {
+			ForceRemoveSourceBranch string `json:"force_remove_source_branch"`
+		} `json:"merge_params"`
+		MergeWhenBuildSucceeds   bool        `json:"merge_when_build_succeeds"`
+		MergeUserID              int         `json:"merge_user_id"`
+		MergeCommitSha           string      `json:"merge_commit_sha"`
+		DeletedAt                string      `json:"deleted_at"`
+		ApprovalsBeforeMerge     string      `json:"approvals_before_merge"`
+		RebaseCommitSha          string      `json:"rebase_commit_sha"`
+		InProgressMergeCommitSha string      `json:"in_progress_merge_commit_sha"`
+		LockVersion              int         `json:"lock_version"`
+		TimeEstimate             int         `json:"time_estimate"`
+		Source                   *Repository `json:"source"`
+		Target                   *Repository `json:"target"`
+		LastCommit               struct {
+			ID        string     `json:"id"`
+			Message   string     `json:"message"`
+			Timestamp *time.Time `json:"timestamp"`
+			URL       string     `json:"url"`
+			Author    *Author    `json:"author"`
+		} `json:"last_commit"`
+		WorkInProgress bool   `json:"work_in_progress"`
+		URL            string `json:"url"`
+		Action         string `json:"action"`
+		Assignee       struct {
+			Name      string `json:"name"`
+			Username  string `json:"username"`
+			AvatarURL string `json:"avatar_url"`
+		} `json:"assignee"`
+	} `json:"merge_request"`
 }
 
 // IssueCommentEvent represents a comment on an issue event.