* lib/gdb.exp (gdb_file_cmd): Revert the return value to
previous simple convention. Use a global variable to store
information about what was found.
(gdb_run_cmd): Adapt to reverted return value.
* gdb.base/remote.exp: Adapt to reverted return value.
* gdb.gdb/complaints.exp: Likewise.
* gdb.gdb/observer.exp: Likewise.
* gdb.gdb/selftest.exp: Likewise.
* gdb.gdb/xfullpath.exp: Likewise.
With code from Manoj Iyer <manjo@austin.ibm.com>:
* lib/gdb.exp (gdb_file_cmd): Return more information in the
return value. Add an arm for "no debugging symbols found".
Change a stray "error" to "perror".
(gdb_run_cmd): Adapt to new return value.
* gdb.base/remote.exp: Adapt to new return value.
* gdb.gdb/complaints.exp: Likewise.
* gdb.gdb/observer.exp: Likewise.
* gdb.gdb/selftest.exp: Likewise.
* gdb.gdb/xfullpath.exp: Likewise.
* gdb.gdb/observer.exp: Update copyright.
(setup_test): Use gdb_test_multiple.
(attach_first_observer, attach_second_observer)
(attach_third_observer, detach_first_observer)
(detach_second_observer, detach_third_observer)
(reset_counters, check_counters): Make $message a prefix.
(test_normal_stop_notifications): Add "args" parameter - a list of
init functions to be called. Make $message a prefix,
(test_observer_normal_stop): Change the message prefixes so that
they are unique, pass the attach / detach procedures to
test_normal_stop_notifications.
