Disallow mixing in classes that use 'super'.

tests/language/language.status

Index: tests/language/language.status
diff --git a/tests/language/language.status b/tests/language/language.status
index 568dac4ce121aba3803815efb14ded1bdf2e6385..8cfae4070cc83b4159f5dc71f80f042e4ae05c40 100644
--- a/tests/language/language.status
+++ b/tests/language/language.status
@@ -68,6 +68,7 @@ mixin_illegal_syntax_test/none: Fail
 mixin_illegal_superclass_test/none: Fail
 mixin_illegal_constructor_test/none: Fail
 mixin_illegal_static_access_test: Fail
+mixin_illegal_super_use_test/none: Fail
 
 [ $compiler == none && ($system == macos || $system == linux) && $arch == ia32 && $checked ]
 gc_test: Skip  # Issue 1487, flaky.
@@ -306,6 +307,18 @@ mixin_illegal_constructor_test/16: Fail # issue 8025
 mixin_illegal_cycles_test/01: Fail # issue 8027
 mixin_illegal_cycles_test/02: Fail # issue 8027
 
+mixin_illegal_super_use_test/01: Fail # issue 8059
+mixin_illegal_super_use_test/02: Fail # issue 8059
+mixin_illegal_super_use_test/03: Fail # issue 8059
+mixin_illegal_super_use_test/04: Fail # issue 8059
+mixin_illegal_super_use_test/05: Fail # issue 8059
+mixin_illegal_super_use_test/06: Fail # issue 8059
+mixin_illegal_super_use_test/07: Fail # issue 8059
+mixin_illegal_super_use_test/08: Fail # issue 8059
+mixin_illegal_super_use_test/09: Fail # issue 8059
+mixin_illegal_super_use_test/10: Fail # issue 8059
+mixin_illegal_super_use_test/11: Fail # issue 8059
+
 #
 # Add new dartc annotations above in alphabetical order
 #
@@ -383,6 +396,7 @@ mixin_mixin_test: Fail                     # VM issue
 mixin_illegal_syntax_test/none: Fail       # VM issue
 mixin_illegal_superclass_test/none: Fail   # VM issue
 mixin_illegal_constructor_test/none: Fail  # VM issue
+mixin_illegal_super_use_test/none: Fail    # VM issue
 
 # Malformed types not handled as unresolved:
 import_core_prefix_test: Fail