.gdbinit: follow up changes in r60726

rb_iseq_constant_body::line_info_size and line_info_table have
been renamed to insns_info_size, insns_info.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60834 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

.gdbinit

@@ -1022,8 +1022,8 @@ define print_lineno
   end
 
   set $i = 0
-  set $size = $iseq->body->line_info_size
-  set $table = $iseq->body->line_info_table
+  set $size = $iseq->body->insns_info_size
+  set $table = $iseq->body->insns_info
   #printf "size: %d\n", $size
   if $size == 0
   else