* gdb.base/signals.exp: Change setup_xfail for "alpha-*-osf2"

	* gdb.base/signals.exp: Change setup_xfail for "alpha-*-osf2"
	to "alpha-*-osf2*" and add comment.
	* gdb.base/a1-selftest.exp (test_with_self): Remove "alpha-dec-osf2*"
 	setup_xfail for "step over execarg initialization" and
 	"step over corearg initialization".
	* gdb.base/callfuncs.exp (do_function_calls): Restore setup_xfail
	for "hppa*-*-*", "sparc-*-*", "mips*-*-*", and "alpha-dec-osf2*".
	* gdb.base/corefile.exp: Add "alpha-dec-osf2*" setup_xfail when not
 	gcc compiled for "print coremaker_bss", "print coremaker_ro",
	"print func2::coremaker_local", and "backtrace in corefile.exp".
	* gdb.base/signals.exp: Build and source signals.ci.
	(test_handle_all_print): Add setup_xfail for "alpha-dec-osf2*".
	Change "alpha-dec-osf2*" setup_xfail for "bt in signals.exp"
	to be for gcc only.
	* lib/gdb.exp: Move verbose statements outside conditionals.