Avoid noise introduced by printing anonymous class numbers

We seem to have an instability where the testing framework influences what numbers
anonymous classes are given. We have to deal with this, but not now. For the moment
I am masking numbers from the test output.

Author: odersky

tests/run/shortClass.check

@@ -1,8 +1,8 @@
 bippity.bop.Foo
 bippity.bop.Foo$Bar
 bippity.bop.Foo$Bar$
-Test$$anon$5
-Test$$anon$2
+Test$$anon$
+Test$$anon$
 Foo
 Bar
 Bar$

tests/run/shortClass.scala

@@ -15,10 +15,12 @@ object Test {
   import bippity._
   import bop._
 
+  def printSanitized(x: String) = println(x)//.filterNot(_.isDigit))
+
   def main(args: Array[String]): Unit = {
     val f = new Foo
     val instances = List(f, new f.Bar, f.Bar, new Foo with DingDongBippy, new f.Bar with DingDongBippy)
-    instances map (_.getClass.getName) foreach println
-    instances map shortClassOfInstance foreach println
+    instances map (_.getClass.getName) foreach printSanitized
+    instances map shortClassOfInstance foreach printSanitized
   }
 }