Check for unset result in GetLink method and throw an exception if the link is not found

[Konard]

Data/csharp/Platform.Data/ILinksExtensions.cs

Line 89 in cf4fd6e

return linkPartsSetter.Result;

in

Data/csharp/Platform.Data/ILinksExtensions.cs

Lines 79 to 90 in cf4fd6e

	public static IList<TLinkAddress> GetLink<TLinkAddress, TConstants>(this ILinks<TLinkAddress, TConstants> links, TLinkAddress link)
	where TConstants : LinksConstants<TLinkAddress>
	{
	var constants = links.Constants;
	if (constants.IsExternalReference(link))
	{
	return new Point<TLinkAddress>(link, constants.TargetPart + 1);
	}
	var linkPartsSetter = new Setter<IList<TLinkAddress>, TLinkAddress>(constants.Continue, constants.Break);
	links.Each(linkPartsSetter.SetAndReturnTrue, link);
	return linkPartsSetter.Result;
	}