Fix TabcompleteTests

Because we add stable terms when completing a type, Java classes will
now appear twice in the completion results when completing a type.

Author: Duhemm

compiler/test/dotty/tools/repl/TabcompleteTests.scala

@@ -77,7 +77,9 @@ class TabcompleteTests extends ReplTest {
       run(src)
     }
     .andThen { implicit state =>
-      val expected = List("FileDescriptor")
+      // FileDescriptor appears once as term, and once as type (we're completing a type, so we
+      // suggest types and terms that may be in a path).
+      val expected = List("FileDescriptor", "FileDescriptor")
       assertEquals(expected, tabComplete("val foo: FileDesc"))
     }
 }