re PR fortran/65819 (overzealous checking in gfc_check_dependency for identical=true)

re PR fortran/65819 (overzealous checking in gfc_check_dependency for identical=true)

2019-07-25  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/65819
	* dependency.h (gfc_dep_resovler): Add optional argument identical.
	* dependency.c (gfc_check_dependency): Do not alway return 1 if
	the symbol is the same. Pass on identical to gfc_dep_resolver.
	(gfc_check_element_vs_element): Whitespace fix.
	(gfc_dep_resolver): Adjust comment for function.  If identical is
	true, return 1 if any overlap has been found.

2019-07-25  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/65819
	* gfortran.dg/dependency_54.f90: New test.

From-SVN: r273807