Fix automatic restoration of breakpoints memory for ia64.

	Fix automatic restoration of breakpoints memory for ia64.
	* ia64-tdep.c: New #if check on BREAKPOINT_MAX vs. BUNDLE_LEN.
	(ia64_memory_insert_breakpoint): New comment part for SHADOW_CONTENTS
	content.  Remove variable instr.  New variable cleanup.  Force
	automatic breakpoints restoration.  PLACED_SIZE and SHADOW_LEN are now
	set larger, to BUNDLE_LEN - 2.  Variable `bundle' type update.  Return
	error if even just final target_write_memory has failed.
	(ia64_memory_remove_breakpoint): Rename variables bundle to bundle_mem
	and instr to instr_saved.  New variables bundle_saved and
	instr_breakpoint.  Comment new reasons why we need to disable automatic
	restoration of breakpoints.  Assert PLACED_SIZE and SHADOW_LEN.  New
	check of the original memory content.  Return error if even just final
	target_write_memory has failed.
	(ia64_breakpoint_from_pc): Implement the emulation of permanent
	breakpoints compatible with current bp_loc_is_permanent.
	(template_encoding_table): Make it `const'.
	* breakpoint.c (bp_loc_is_permanent): Support unsupported software
	breakpoints.  New variables `cleanup' and `retval'.
	* monitor.c (monitor_insert_breakpoint): Remove unused variable `bp'.