RFA: add breakpoint-notifications feature to MI

[Tom Tromey]

This needs a doc review.

André Pönitz pointed out that it would be handy for MI users if
-list-features mentioned the breakpoint notification feature that went
in recently.

This patch implements the suggestion -- he wrote the patch, I added some
documentation.

Built and regtested by the buildbot.

Ok?

Tom

2011-06-16  André Pönitz  <andre.poenitz@nokia.com>

	* mi/mi-main.c (mi_cmd_list_features): Emit
	breakpoint-notifications.

2011-06-16  Tom Tromey  <tromey@redhat.com>

	* gdb.texinfo (GDB/MI Miscellaneous Commands): Document
	breakpoint-notifications feature.

diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index 3a705c2..21f1374 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -30066,6 +30066,9 @@ Indicates presence of the @code{-thread-info} command.
 @item data-read-memory-bytes
 Indicates presense of the @code{-data-read-memory-bytes} and the
 @code{-data-write-memory-bytes} commands.
+@item breakpoint-notifications
+Indicates that changes to breakpoints and breakpoints created via the
+CLI will be announced via async records.
 
 @end table
 
diff --git a/gdb/mi/mi-main.c b/gdb/mi/mi-main.c
index ca62a30..7592a74 100644
--- a/gdb/mi/mi-main.c
+++ b/gdb/mi/mi-main.c
@@ -1708,6 +1708,7 @@ mi_cmd_list_features (char *command, char **argv, int argc)
       ui_out_field_string (uiout, NULL, "pending-breakpoints");
       ui_out_field_string (uiout, NULL, "thread-info");
       ui_out_field_string (uiout, NULL, "data-read-memory-bytes");
+      ui_out_field_string (uiout, NULL, "breakpoint-notifications");
       
 #if HAVE_PYTHON
       ui_out_field_string (uiout, NULL, "python");