[Bug lto/65316] [5 Regression] LTO: Uninitialized memory / ICE with -g -fno-lto-odr-type-merging: in types_same_for_odr, at ipa-devirt.c:465

[hubicka at ucw dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65316

--- Comment #9 from Jan Hubicka <hubicka at ucw dot cz> ---
This is patch adding the separate hash tables and also bit of extra sanity
checking for merging
types with ODR info and types without.