[Bug c/65120] [5 Regression] Wlogical-not-parentheses should not warn about double exclamation !!

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65120

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
And yes, the required

  if ((!!a) == b)

is totally fugly.