gcc/

	PR middle-end/66221
	* ipa-chkp.c (chkp_copy_function_type_adding_bounds): Use
	build_distinct_type_copy to copy bounds.

gcc/testsuite/

	PR middle-end/66221
	* gcc.dg/lto/pr66221_0.c: New test.
	* gcc.dg/lto/pr66221_1.c: New test.

From-SVN: r223471