Fix gdb.bas/sigall.exp testcase in AIX.

In AIX, we are not able to see the message of a signal recieved if a debugee recieves a signal.
This is a patch to fix the signal handling done incorrectly in AIX.

We remove the status that represent program recieving a signal and allow host_status_to_waitstatus to
handle it for us.
1 file changed