[RFC] Autoload-breakpoints new version [0/9]

[Hui Zhu <hui_zhu at mentor dot com>]

Hi,

This is the new version for autoload-breakpoints.
After the discussion on the Prague, I gived up the report-async.  Because it will make GDB hang by the remote target.
When I post my old patches of report-async, some people ask me why not use notification.  I agree.  Why not?  :)
So I did some extend on notification and use it to do the sync work inside autoload-breakpoints.  I will introduce them clear inside the mail that have the patches.
I thought this design still need a lot of change and something else.  So please help me with it.

There are patches to make GDB support autoload-breakpoints.
It is:
1. it is set by the remote stub.
2. The remote stub can control autoload-breakpoints any time even if GDB is just control the inferior.
3. This support is for some special stub.

Thanks,
Hui