Mark dartbug/27526 tests as failing in DDC.

pkg/dev_compiler/test/not_yet_strong_tests.dart

Index: pkg/dev_compiler/test/not_yet_strong_tests.dart
diff --git a/pkg/dev_compiler/test/not_yet_strong_tests.dart b/pkg/dev_compiler/test/not_yet_strong_tests.dart
index 7cf87ccf876e6eb46fdcbad0d4e90afda7cb1275..5c6413c2d6db2dad83e1dc2bcf9821e1f4ea6400 100644
--- a/pkg/dev_compiler/test/not_yet_strong_tests.dart
+++ b/pkg/dev_compiler/test/not_yet_strong_tests.dart
@@ -1200,6 +1200,7 @@ final notYetStrongTests = new HashSet<String>.from([
   'language/mixin_lib_extends_field_test',
   'language/mixin_lib_extends_method_test',
   'language/mixin_method_test',
+  'language/mixin_mixin_bound_test',
   'language/mixin_super_bound2_test_01_multi',
   'language/mixin_super_bound2_test_none_multi',
   'language/mixin_super_bound_test',
@@ -1479,6 +1480,7 @@ final notYetStrongTests = new HashSet<String>.from([
   'language/regress_22936_test_01_multi',
   'language/regress_23038_test_01_multi',
   'language/regress_23051_test_01_multi',
+  'language/regress_23089_test',
   'language/regress_23408_test',
   'language/return_type_test',
   'language/rewrite_implicit_this_test_01_multi',
@@ -2119,6 +2121,7 @@ final notYetStrongTests = new HashSet<String>.from([
   'lib/mirrors/generic_class_declaration_test',
   'lib/mirrors/generic_f_bounded_mixin_application_test',
   'lib/mirrors/generic_interface_test_01_multi',
+  'lib/mirrors/generics_dynamic_test',
   'lib/mirrors/generics_test_01_multi',
   'lib/mirrors/get_symbol_name_no_such_method_test',
   'lib/mirrors/immutable_collections_test',