src/vs/workbench/api/common/extHostComments.ts/convertToReaction
function convertToReaction(reaction: vscode.CommentReaction): modes.CommentReaction {
	return {
		label: reaction.label,
		iconPath: reaction.iconPath ? extHostTypeConverter.pathOrURIToURI(reaction.iconPath) : undefined,
		count: reaction.count,
		hasReacted: reaction.authorHasReacted,
	};
}