### Godot version

v4.0.beta13.official [caacade56]

### System information

Windows 8.1

### Issue description

The `Unreachable code (statement after return) in function 'function_name()'` warning is given for functions that do not have unreachable code. The same code does not give this warning in v3.5.stable.official [991bb6ac7].

### Steps to reproduce

```
func warning(i: int) -> void:
  if i == 0:
    pass
  elif i == 1:
    return
  else:
    return
  print("yeah")
```

Removing either the `elif` or the `else` removes the warning.

### Minimal reproduction project

N/A; code in reproduction steps can be placed in any blank gdscript file to trigger the error.
push_text("Enum ");
	if (p_enum->identifier != nullptr) {
		print_identifier(p_enum->identifier);
	} else {
		push_text("<unnamed>");
	}
	push_line(" {");
	increase_indent();
	for (int i = 0; i < p_enum->values.size(); i++) {
		const EnumNode::Value &item = p_enum->values[i];
		print_identifier(item.identifier);
		push_text(" = ");
		push_text(itos(item.value));
		push_line(" ,");
	}
	decrease_indent();
	push_line("}");
}
void GDScriptParser::TreePrinter::print_for(ForNode *p_for) {
	push_text("For ");
	print_identifier(p_for->variable);
	push_text(" IN ");
	print_expression(p_for->list);
	push_line(" :");
	increase_indent();
	print_suite(p_for->loop);
	decrease_indent();
}
void GDScriptParser::TreePrinter::print_function(FunctionNode *p_function, const String &p_context) {