Different angle on this answer — what about this aspect of the compiler?
InternalVisibleTo Attribute
Might make an interesting topic of conversation related to a “different angle” to use to approach debugging?
MORE INFO (from the article):
Version Information
Universal Windows Platform
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1