2011-02-24 Michael Snyder <msnyder@vmware.com>

2011-02-24  Michael Snyder  <msnyder@vmware.com>

	* value.c (value_from_history_ref): New function.
	* value.h (value_from_history_ref): Export.
	* cli/cli-utils.c (get_number_trailer): Use value_from_history_ref
	to parse value history references.
	* cli/cli-utils.h (get_number_trailer): Update comment.

2011-02-24  Michael Snyder  <msnyder@vmware.com>

	* gdb.base/break.exp: Add tests for delete breakpoints using
	convenience variables and value history references.