[PATCH 2/9] Move `compute_probe_arg' and `compile_probe_arg' to probe.c

[Jose E. Marchesi]

    > This patch moves the `compute_probe_arg' and `compile_probe_arg' functions
    > from stap-probe.c to probe.c.  The rationale is that it is reasonable to
    > assume that all backends will provide the `$_probe_argN' convenience
    > variables, and that the user must be placed on the PC of the probe when
    > requesting that information.  The value and type of the argument can still be
    > determined by the probe backend via the `pops->evaluate_probe_argument' and
    > `pops->compile_to_ax' handlers.
    >
    > Note that a test in gdb.base/stap-probe.exp had to be adjusted because the "No
    > SystemTap probe at PC" messages are now "No probe at PC".
    
    Hi Jose,
    
    Thanks for this patch.
    
    Just a nit on the ChangeLog entry.

Fixed in the patch.