[Bug preprocessor/60368] ICE on not unibyte character in execution character set

[rmansfield at qnx dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60368

--- Comment #1 from Ryan Mansfield <rmansfield at qnx dot com> ---
Maybe a WONTFIX. It's not clear to me why cpp_host_to_exec_charset is using 
CPP_DL_ICE for this instead of CPP_DL_ERROR