### Godot version

Godot 4.0.1.stable

### System information

Windows 10, Forward+

### Issue description

Example code:

```gdscript
@warning_ignore("shadowed_global_identifier")
static func print_debug(msg: String):
```

the warning is ignored by pressing [ignore] in the warnings panel.

pressing it multiple times results in:
```gdscript
@warning_ignore("shadowed_global_identifier", "shadowed_global_identifier")
```


### Steps to reproduce

Shadowing a global function with a method of script:

```gdscript
@warning_ignore("shadowed_global_identifier")
static func print_debug(msg: String):
```


### Minimal reproduction project

```gdscript
@warning_ignore("shadowed_global_identifier")
static func print_debug(msg: String):
    pass
```
if (base.is_hard_type()) {
#ifdef SUGGEST_GODOT4_RENAMES
						String rename_hint = String();
						if (GLOBAL_GET(GDScriptWarning::get_settings_path_from_code(GDScriptWarning::Code::RENAMED_IN_GODOT_4_HINT)).booleanize()) {
							const char *renamed_identifier_name = check_for_renamed_identifier(name, p_identifier->type);
							if (renamed_identifier_name) {
								rename_hint = " " + vformat(R"(Did you mean to use "%s"?)", renamed_identifier_name);
							}
						}
						push_error(vformat(R"(Cannot find property "%s" on base "%s".%s)", name, base.to_string(), rename_hint), p_identifier);
#else
						push_error(vformat(R"(Cannot find property "%s" on base "%s".)", name, base.to_string()), p_identifier);
#endif 
					}
				}
			}
		}
		return;
	}
	GDScriptParser::ClassNode *base_class = base.class_type;
	List<GDScriptParser::ClassNode *> script_classes;
	bool is_base = true;
	if (base_class != nullptr) {
		get_class_node_current_scope_classes(base_class, &script_classes);
	}
	bool is_constructor = base.is_meta_type && p_identifier->name == SNAME("new");
	for (GDScriptParser::ClassNode *script_class : script_classes) {
		if (p_base == nullptr && script_class->identifier && script_class->identifier->name == name) {
			reduce_identifier_from_base_set_class(p_identifier, script_class->get_datatype());
			return;