nonexistent accent combinations

[Akim Demaille]

I tend to believe that the following behavior is best called a bug.
But one could argue one day someone might invent a meaningful
interpretation of what I had naively copy-pasted, but the most
probable result is that What-You-Get-Is-Not-What-You-Expected, and a
warning would be most welcome IMHO.

Thanks!

src/texinfo/test-cases % eof nonexistent-accents.texi            nostromo 17:01
: -------------------- nonexistent-accents.texi ----------------------
cat > nonexistent-accents.texi << \EOF
\input texinfo   @c -*-texinfo-*-
@example
"$@" 2>&1
@end example
@bye
EOF
: ------------------------------------------------------------
src/texinfo/test-cases % makeinfo --no-headers nonexistent-accents.texi
"$2">&1


Here is the "TeX-interpretation" of the result.

nonexistent-accents.dvi.png
Description: PNG image