Rust: Filter downgraded comments on removed nodes

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: redsun82

rust/downgrades/109496fd2f20f28a35e50b110859e74882ee80d6/upgrade.properties

@@ -11,6 +11,7 @@ cfg_composites.rel: delete
 cfg_composite_cfg_predicates.rel: delete
 cfg_meta.rel: delete
 cfg_meta_cfg_predicates.rel: delete
+comments.rel: run upgrade.ql new_comments
 const_args.rel: run upgrade.ql new_const_args
 const_arg_exprs.rel: run upgrade.ql new_const_arg_exprs
 format_args_arg_arg_names.rel: delete

rust/downgrades/109496fd2f20f28a35e50b110859e74882ee80d6/upgrade.ql

@@ -44,6 +44,7 @@ private predicate deletedElement(Element id) {
   unsafeInnerMeta(id) or
   cfg_atoms(id) or
   cfg_composites(id) or
+  format_args_arg_names(id) or
   try_block_modifiers(id)
 }
 
@@ -67,6 +68,10 @@ query predicate new_const_arg_exprs(Element id, Element expr) {
   const_arg_exprs(id, expr) and not wrapperConstArg(id)
 }
 
+query predicate new_comments(Element id, Element parent, string text) {
+  comments(id, parent, text) and not deletedElement(parent)
+}
+
 query predicate new_struct_field_defaults(Element id, Element expr) {
   exists(Element constArg | struct_field_default_vals(id, constArg) and const_arg_exprs(constArg, expr))
 }