[Bug c/69229] missing type information in diagnostics about type mismatch in conditional expressions

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69229

--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
Created attachment 37307
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37307&action=edit
Prototype patch.