error.c (gfc_error_check): Use bool not int.

error.c (gfc_error_check): Use bool not int.

2014-12-06  Tobias Burnus  <burnus@net-b.de>

        * error.c (gfc_error_check): Use bool not int.
        * gfortran.h (gfc_error_check): Update prototype.
        * match.c (gfc_match_if): Update call.
        * parse.c (decode_statement, decode_omp_directive,
        decode_gcc_attribute): Ditto.

From-SVN: r218450