re PR fortran/83683 (eoshift accepts wrong-length boundary)

re PR fortran/83683 (eoshift accepts wrong-length boundary)

2018-01-04  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/83683
	PR fortran/45689
	* check.c (gfc_check_eoshift): Check for string length and
	for conformance of boundary.
	* intrinsic.c (add_functions): Add gfc_simplify_eoshift.
	* intrinsic.h: Add prototype for gfc_simplify_eoshift.
	* simplify.c (gfc_simplify_eoshift): New function.

2018-01-04  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/83683
	PR fortran/45689
	* gfortran.dg/eoshift_8.f90: New test.
	* gfortran.dg/simplify_eoshift_1.f90: New test.

From-SVN: r256265