epic MSIL hacking - Array compiles.

git-svn-id: http://lampsvn.epfl.ch/svn-repos/scala/scala/trunk@17673 5e8d7ff9-d8ef-0310-90f0-a4852d11357a

src/dotnet-library/scala/runtime/RichClass.scala

@@ -21,5 +21,6 @@ final class RichClass(val self: Class[_]) extends Proxy {
   def getClass(): RichClass = this
   def getName(): String = self.Name
   def getComponentType(): Class[_] = self.GetElementType
+  def isAssignableFrom(other: RichClass) = self.IsAssignableFrom(other.self)
 
 }