### 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 (found) {
				break;
			}
			cursor_line++;
			cursor_column = 1;
		}
		source = source.replace_first(String::chr(0xFFFF), String());
	}
	tokenizer.set_source_code(source);
	tokenizer.set_cursor_position(cursor_line, cursor_column);
	script_path = p_script_path;
	current = tokenizer.scan();
	
	
	while (current.type == GDScriptTokenizer::Token::ERROR || current.type == GDScriptTokenizer::Token::NEWLINE) {
		if (current.type == GDScriptTokenizer::Token::ERROR) {
			push_error(current.literal);
		}
		current = tokenizer.scan();
	}
#ifdef DEBUG_ENABLED
	
	if (current.type == GDScriptTokenizer::Token::TK_EOF) {
		
		Node *nd = alloc_node<PassNode>();
		nd->start_line = 1;
		nd->start_column = 0;
		nd->end_line = 1;
		nd->leftmost_column = 0;
		nd->rightmost_column = 0;