### 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
```
GDScriptParser::DataType parent_return_type;
		List<GDScriptParser::DataType> parameters_types;
		int default_par_count = 0;
		BitField<MethodFlags> method_flags;
		StringName native_base;
		if (!p_is_lambda && get_function_signature(p_function, false, base_type, function_name, parent_return_type, parameters_types, default_par_count, method_flags, &native_base)) {
			bool valid = p_function->is_static == method_flags.has_flag(METHOD_FLAG_STATIC);
			valid = valid && parent_return_type == p_function->get_datatype();
			int par_count_diff = p_function->parameters.size() - parameters_types.size();
			valid = valid && par_count_diff >= 0;
			valid = valid && default_value_count >= default_par_count + par_count_diff;
			int i = 0;
			for (const GDScriptParser::DataType &par_type : parameters_types) {
				valid = valid && par_type == p_function->parameters[i++]->get_datatype();
			}
			if (!valid) {
				
				String parent_signature = String(function_name) + "(";
				int j = 0;
				for (const GDScriptParser::DataType &par_type : parameters_types) {
					if (j > 0) {
						parent_signature += ", ";
					}
					String parameter = par_type.to_string();
					if (parameter == "null") {
						parameter = "Variant";
					}
					parent_signature += parameter;
					if (j >= parameters_types.size() - default_par_count) {
						parent_signature += " = <default>";