re PR fortran/71687 (ICE in omp_add_variable, at gimplify.c:5821)

re PR fortran/71687 (ICE in omp_add_variable, at gimplify.c:5821)

	PR fortran/71687
	* f95-lang.c (struct binding_level): Add reversed field.
	(clear_binding_level): Adjust initializer.
	(getdecls): If reversed is clear, set it and nreverse the names
	chain before returning it.
	(poplevel): Use getdecls.
	* trans-decl.c (gfc_generate_function_code, gfc_process_block_locals):
	Use nreverse to pushdecl decls in the declaration order.

	* gfortran.dg/gomp/pr71687.f90: New test.

From-SVN: r237926