[Bug c++/92986] ODR violation not detected

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92986

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
We could in theory save the tokens of each method and compare them, but it
would be quite costly.
Normally people don't cut'n'paste classes between TUs, but rather just declare
them once in a header they include multiple times, so it is certainly not a
common scenario.