re PR lto/86321 (ICE:  in splice_child_die, at dwarf2out.c:5693 for several Fortran tests with -g -flto)

2018-07-02  Richard Biener  <rguenther@suse.de>

	PR lto/86321
	* trans-types.c (gfc_get_array_type_bounds): Unshare TYPE_FIELDs
	for the distinct type copy.

From-SVN: r262301