https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100179
--- Comment #1 from Christophe Lyon <clyon at gcc dot gnu.org> ---
Similar errors noticed in libstdc++ testsuite:
17_intro/headers/c++2020/all_attributes.cc (test for excess errors)
17_intro/headers/c++2020/all_no_exceptions.cc (test for excess errors)
17_intro/headers/c++2020/all_no_rtti.cc (test for excess errors)
17_intro/headers/c++2020/all_pedantic_errors.cc (test for excess errors)
17_intro/headers/c++2020/operator_names.cc (test for excess errors)
17_intro/headers/c++2020/stdc++.cc (test for excess errors)
17_intro/headers/c++2020/stdc++_multiple_inclusion.cc (test for excess
errors)
20_util/polymorphic_allocator/allocate_object.cc (test for excess errors)
20_util/polymorphic_allocator/construct_c++2a.cc (test for excess errors)
20_util/polymorphic_allocator/lwg3237.cc (test for excess errors)
20_util/scoped_allocator/construct_pair_c++2a.cc (test for excess errors)
20_util/uses_allocator/make_obj.cc (test for excess errors)
21_strings/basic_string/hash/hash_char8_t.cc (test for excess errors)
24_iterators/normal_iterator/cmp_c++20.cc (test for excess errors)
27_io/basic_istringstream/cons/char/1.cc (test for excess errors)
27_io/basic_istringstream/cons/wchar_t/1.cc (test for excess errors)
27_io/basic_istringstream/str/char/2.cc (test for excess errors)
27_io/basic_istringstream/str/wchar_t/2.cc (test for excess errors)
27_io/basic_ostringstream/cons/char/1.cc (test for excess errors)
27_io/basic_ostringstream/cons/wchar_t/1.cc (test for excess errors)
27_io/basic_ostringstream/str/char/3.cc (test for excess errors)
27_io/basic_ostringstream/str/wchar_t/3.cc (test for excess errors)
27_io/basic_stringbuf/cons/char/2.cc (test for excess errors)
27_io/basic_stringbuf/cons/wchar_t/2.cc (test for excess errors)
27_io/basic_stringbuf/str/char/4.cc (test for excess errors)
27_io/basic_stringbuf/str/wchar_t/4.cc (test for excess errors)
27_io/basic_stringstream/cons/char/1.cc (test for excess errors)
27_io/basic_stringstream/cons/wchar_t/1.cc (test for excess errors)
27_io/basic_stringstream/str/char/5.cc (test for excess errors)
27_io/basic_stringstream/str/wchar_t/5.cc.cc (test for excess errors)
27_io/basic_syncbuf/basic_ops/1.cc (test for excess errors)
27_io/basic_syncstream/basic_ops/1.cc (test for excess errors)
