Recategorize tests

Passing tests from pending/pos go in pos. Some others
go in diabled/not-testable. These are tests that require
a compilation order which we cannot yet do with our unit
testing framework. Compiling them alltogether (as is now
doen in junit) does not work either for them because they
contain a duplicate class.

Author: odersky

test/dotc/tests.scala

@@ -110,6 +110,7 @@ class tests extends CompilerTest {
   @Test def rewrites = compileFile(posScala2Dir, "rewrites", "-rewrite" :: scala2mode)
 
   @Test def pos_859 = compileFile(posSpecialDir, "i859", scala2mode)(allowDeepSubtypes)
+  @Test def pos_t8146a = compileFile(posSpecialDir, "t8146a")(allowDeepSubtypes)
 
   @Test def pos_t5545 = {
     // compile by hand in two batches, since junit lacks the infrastructure to