[RFC] add 'save-breakpoints' command

[Klee Dienes]

> Thanks!  Please consider writing up some minimal docs for this
> functionality, for the gdb.texinfo manual.

Whoops.  How about this:

--- cygnus.pristine/src/gdb/doc/gdb.texinfo     Fri Nov 30 19:27:53 2001
+++ cygnus.patched/src/gdb/doc/gdb.texinfo      Tue Dec  4 16:27:02 2001
@@ -2335,6 +2335,7 @@
 * Set Catchpoints::             Setting catchpoints
 * Delete Breaks::               Deleting breakpoints
 * Disabling::                   Disabling breakpoints
+* Saving::                      Saving breakpoints
 * Conditions::                  Break conditions
 * Break Commands::              Breakpoint command lists
 * Breakpoint Menus::            Breakpoint menus
@@ -2941,6 +2942,22 @@
 breakpoint of its own, but it does not change the state of your other
 breakpoints; see @ref{Continuing and Stepping, ,Continuing and
 stepping}.)
+
+@node Saving
+@subsection Saving breakpoints
+@cindex save breakpoints for future sessions
+
+Sometimes, it can be convenient to save the current set of breakpoints
+for use in a future debugging session:
+
+@table @code
+@kindex save-breakpoints
+@item save-breakpoints
+Save all current breakpoint definitions, together with their
+ignore-counts and command scripts, into the file @file{@var{filename}}.
+To read the saved breakpoint definitions, use the @code{source} command
+(@pxref{Command Files}).
+@end table