### 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 (E->get().start_line > warning.start_line) {
			break;
		}
		before = E;
	}
	if (before) {
		warnings.insert_after(before, warning);
	} else {
		warnings.push_front(warning);
	}
}
#endif
void GDScriptParser::make_completion_context(CompletionType p_type, Node *p_node, int p_argument, bool p_force) {
	if (!for_completion || (!p_force && completion_context.type != COMPLETION_NONE)) {
		return;
	}
	if (previous.cursor_place != GDScriptTokenizer::CURSOR_MIDDLE && previous.cursor_place != GDScriptTokenizer::CURSOR_END && current.cursor_place == GDScriptTokenizer::CURSOR_NONE) {
		return;
	}
	CompletionContext context;
	context.type = p_type;
	context.current_class = current_class;
	context.current_function = current_function;
	context.current_suite = current_suite;
	context.current_line = tokenizer.get_cursor_line();
	context.current_argument = p_argument;
	context.node = p_node;
	completion_context = context;
}
void GDScriptParser::make_completion_context(CompletionType p_type, Variant::Type p_builtin_type, bool p_force) {