re PR fortran/87172 (Spurious "Derived type 'c_funptr' at (1) has not been declared...

re PR fortran/87172 (Spurious "Derived type 'c_funptr' at (1) has not been declared" error after r263782)

fix PR 87172

2018-09-11  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/87172
	* resolve.c (resolve_fl_derived): If a type has the 'use_assoc'
	attribute, then it was declared in another module, so there should be
	no error that it has not been declared.

2018-09-11  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/87172
	* gfortran.dg/iso_c_binding_only_2.f90: New test case.

From-SVN: r264214