[Bug c/70339] Poor message for "singed" vs "signed" typo

[schwab@linux-m68k.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70339

--- Comment #4 from Andreas Schwab <schwab@linux-m68k.org> ---
On powerpc:

/daten/gcc/gcc-20160701/gcc/testsuite/gcc.dg/diagnostic-token-ranges.c: In
function 'unknown_type_name':
/daten/gcc/gcc-20160701/gcc/testsuite/gcc.dg/diagnostic-token-ranges.c:21:3:
error: unknown type name 'foo'; did you mean 'bool'?
   foo bar; /* { dg-error "unknown type name 'foo'" } */
   ^~~
   bool

FAIL: gcc.dg/diagnostic-token-ranges.c (test for excess errors)
Excess errors:
   bool