### 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
```
Dictionary dictionary;
	for (int i = 0; i < p_dictionary->elements.size(); i++) {
		const GDScriptParser::DictionaryNode::Pair &element = p_dictionary->elements[i];
		bool is_element_key_reduced = false;
		Variant element_key = make_expression_reduced_value(element.key, is_element_key_reduced);
		if (!is_element_key_reduced) {
			return Variant();
		}
		bool is_element_value_reduced = false;
		Variant element_value = make_expression_reduced_value(element.value, is_element_value_reduced);
		if (!is_element_value_reduced) {
			return Variant();
		}
		dictionary[element_key] = element_value;
	}
	dictionary.make_read_only();
	is_reduced = true;
	return dictionary;
}
Variant GDScriptAnalyzer::make_subscript_reduced_value(GDScriptParser::SubscriptNode *p_subscript, bool &is_reduced) {