Stop C# compiler from static type-checking

CastAs.cs

// Sometimes the compiler will try to statically type-check when you don't want it to.
// TODO: I need to get a better example in here.
// This extension method to object makes the static type checker give up through the use of a generic method that does the casting.

public static T CastAs<T>(this object value)
{
  return (T)value;
}