tree-object-size.c (addr_object_size): Always use object_size_type 0 or 2 when determining the pointer pointed object size.

	* tree-object-size.c (addr_object_size): Always use object_size_type
	0 or 2 when determining the pointer pointed object size.

	* gcc.dg/builtin-object-size-9.c: New test.

From-SVN: r151323