[Bug c/104948] When '&&' present in a comparison, a warning should be generated

[schwab@linux-m68k.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104948

--- Comment #11 from Andreas Schwab <schwab@linux-m68k.org> ---
The size of bool is target dependent (though only Darwin/ppc overrides it).