* ld-elf/comm-data.exp: Use check_shared_lib_support rather than

	* ld-elf/comm-data.exp: Use check_shared_lib_support rather than
	explicit patterns for test target qualification.  Define extra
	tool flags for *-*-hpux* and tic6x-*-* targets.  Link with a
	linker script.  Use alternative patterns for targets that do not
	eliminate copy relocs, currently mn10300-*-* and vax-*-*.
	* ld-elf/comm-data2.s: Handle HPUX's `.comm' syntax.
	* ld-elf/comm-data2.ld: New test linker script.
	* ld-elf/comm-data2.xd: Match section's VMA too.  Ignore ASCII
	data dump.
	* ld-elf/comm-data2r.rd: New test pattern.
	* ld-elf/comm-data2r.sd: New test pattern.
	* ld-elf/comm-data2r.xd: New test pattern.
	* ld-mips-elf/comm-data.exp: Use check_shared_lib_support rather
	than an explicit pattern for test target qualification.  Link
	with a linker script.