https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99546
--- Comment #4 from 康桓瑋 <hewillk at gmail dot com> ---
same form, but this will trigger ICE:
====
struct S{
constexpr static auto s = requires { []; };
};
====
<source>:1:8: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in override_type_for_decl_p, at dwarf2out.c:23786
1 | struct S{
| ^
0x1cfa229 internal_error(char const*, ...)
???:0
0x67b5e5 tree_class_check_failed(tree_node const*, tree_code_class, char
const*, int, char const*)
???:0
0xf3666f rest_of_type_compilation(tree_node*, int)
???:0
0x70c969 finish_struct_1(tree_node*)
???:0
0x70e754 finish_struct(tree_node*, tree_node*)
???:0
0x8e121d c_parse_file()
???:0
0xa5f812 c_common_parse_file()
???:0
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
