[Bug sanitizer/64670] -fsanitize=vptr leads to "undefined reference to `typeinfo for class'"

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64670

--- Comment #8 from Jason Merrill <jason at gcc dot gnu.org> ---
(In reply to Tobias Burnus from comment #5)
> Updated test case (part 1/2): [main file] compile with g++ -fsanitize=vptr

In this test case you have

> #pragma implementation "test.h"

followed by

> # 1 "test2.h" 1
> #pragma interface

so the #pragma implementation doesn't match.  If I change it to be "test2.h" I
get the typeinfo for LogListener.