src/vs/workbench/api/common/extHostComments.ts/ExtHostCommentThread/canReply
class ExtHostCommentThread:		set canReply(state: boolean) {
			if (this._canReply !== state) {
				this._canReply = state;
				this.modifications.canReply = state;
				this._onDidUpdateCommentThread.fire();
			}
		}