[Bug c++/88320] GCC suggests variables that don't exist yet

[jg at jguk dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88320

--- Comment #1 from Jonny Grant <jg at jguk dot org> ---
Created attachment 45144
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45144&action=edit
test case