### 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
```
} else {
						head->annotations.push_back(annotation);
					}
				} else {
					annotation_stack.push_back(annotation);
					
					
					
					can_have_class_or_extends = false;
					break;
				}
			}
		} else if (check(GDScriptTokenizer::Token::LITERAL) && current.literal.get_type() == Variant::STRING) {
			
			advance();
			if (!match(GDScriptTokenizer::Token::NEWLINE)) {
				push_error("Expected newline after comment string.");
			}
		} else {
			break;
		}
	}
	while (can_have_class_or_extends) {
		
		switch (current.type) {
			case GDScriptTokenizer::Token::CLASS_NAME:
				advance();
				if (head->identifier != nullptr) {
					push_error(R"("class_name" can only be used once.)");
				} else {