I don't know how challenging it would be; it might just require bringing in some new libraries which isn't always easy to do, and may not be desirable either, especially if it's just to support this one feature.
ILSpy can decompile the same IL into C# and VB. So all he would have to do is go from the source language into IL and back out to the target language. I'm not sure if his current tool set includes a decompiler; if it does, then he could probably do it pretty easily.
As for how useful it is, I think it would only be useful as a learning tool. But I have a friend who is trying to learn C#. He knows VB very well, so for him it would be a great help in his learning process!
I don't know how challenging it would be; it might just require bringing in some new libraries which isn't always easy to do, and may not be desirable either, especially if it's just to support this one feature.
ILSpy can decompile the same IL into C# and VB. So all he would have to do is go from the source language into IL and back out to the target language. I'm not sure if his current tool set includes a decompiler; if it does, then he could probably do it pretty easily.
As for how useful it is, I think it would only be useful as a learning tool. But I have a friend who is trying to learn C#. He knows VB very well, so for him it would be a great help in his learning process!