re PR fortran/38536 (ICE with C_LOC in resolve.c due to not properly going through...

re PR fortran/38536 (ICE with C_LOC in resolve.c due to not properly going through expr->ref)

2009-01-04  Mikael Morin  <mikael.morin@tele2.fr>

	PR fortran/38536
	* gfortran.h (gfc_is_data_pointer): Added prototype
	* resolve.c (gfc_iso_c_func_interface):
	Use gfc_is_data_pointer to test for pointer attribute.
	* dependency.c (gfc_is_data_pointer):
	Support pointer-returning functions.

2009-01-04  Mikael Morin  <mikael.morin@tele2.fr>

	PR fortran/38536
	* gfortran.dg/c_loc_tests_13.f90: New test.
	* gfortran.dg/c_loc_tests_14.f90: New test.

From-SVN: r143050