Split out unittest tests whose behavior differs in minified mode.

pkg/pkg.status

Index: pkg/pkg.status
diff --git a/pkg/pkg.status b/pkg/pkg.status
index 6f9e10e5670776c60d9c6604dbebb98ab319af23..e4229f4ef70923fe25e094d8014c0e249a5e228d 100644
--- a/pkg/pkg.status
+++ b/pkg/pkg.status
@@ -126,6 +126,17 @@ unittest/test/instance_test: Skip
 unittest/test/mock_test: Fail
 unittest/test/mock_regexp_negative_test: Fail
 
+# The unminified unittest tests test that the real names of Dart types are
+# printed. Minified versions of these tests exist that test the behavior when
+# minified.
+unittest/test/*_unminified_test: Skip
+
+[ $minified == false ]
+# The minified unittest tests test that the minified names of Dart types are
+# printed. Unminified versions of these tests exist that test the behavior when
+# not minified.
+unittest/test/*_minified_test: Skip
+
 [ $compiler == none && $runtime == drt ]
 dartdoc/test/dartdoc_test: Skip # See dartbug.com/4541.