[Bug c++/121932] [16 regression] ICE when building gdb trunk with LTO (tree code ‘template_parm_index’ is not supported in LTO stream)

[sjames at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121932

--- Comment #2 from Sam James <sjames at gcc dot gnu.org> ---
```
struct enum_flags {
  template <long N> void to_string(int (&)[N]);
};
struct language_defn {
  virtual void language_arch_info(int *, int *) const;
  virtual void lookup_symbol_local(const enum_flags) {}
};
struct go_language : language_defn {
  void language_arch_info(int *, int *) const;
};
void go_language::language_arch_info(int *, int *) const {}
```