### 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 (src_class == p_target.class_type || src_class->fqcn == p_target.class_type->fqcn) {
					return true;
				}
				src_class = src_class->base_type.class_type;
			}
			return false;
		case GDScriptParser::DataType::VARIANT:
		case GDScriptParser::DataType::BUILTIN:
		case GDScriptParser::DataType::ENUM:
		case GDScriptParser::DataType::RESOLVING:
		case GDScriptParser::DataType::UNRESOLVED:
			break; 
	}
	return false;
}
void GDScriptAnalyzer::push_error(const String &p_message, const GDScriptParser::Node *p_origin) {
	mark_node_unsafe(p_origin);
	parser->push_error(p_message, p_origin);
}
void GDScriptAnalyzer::mark_node_unsafe(const GDScriptParser::Node *p_node) {
#ifdef DEBUG_ENABLED
	if (p_node == nullptr) {
		return;
	}
	for (int i = p_node->start_line; i <= p_node->end_line; i++) {
		parser->unsafe_lines.insert(i);
	}
#endif
}
void GDScriptAnalyzer::downgrade_node_type_source(GDScriptParser::Node *p_node) {