[Bug fortran/56650] Odd error messages with C_SIZEOF for valid code

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56650

--- Comment #2 from Tobias Burnus <burnus at gcc dot gnu.org> 2013-03-26 11:22:54 UTC ---
Probably due to not simplifying c_sizeof(), cf. PR 36437. Related PR46641 and
PR45824