Add tests for PR ld/16452 and PR ld/16457

	PR ld/16452
	PR ld/16457
	* ld-elf/pr16452.map: New file.
	* ld-elf/pr16452.od: Likewise.
	* ld-elf/pr16452a.c: Likewise.
	* ld-elf/pr16452b.c: Likewise.
	* ld-elf/pr16457.od: Likewise.

	* ld-elf/shared.exp (build_tests): Add tests for PR ld/16452 and
	PR ld/16457.
Automatic date update in version.in