### 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.
return kind == GDScriptParser::DataType::BUILTIN && _variant_type_to_typed_array_element_type(builtin_type) != Variant::NIL;
}
GDScriptParser::DataType GDScriptParser::DataType::get_typed_container_type() const {
	GDScriptParser::DataType type;
	type.kind = GDScriptParser::DataType::BUILTIN;
	type.builtin_type = _variant_type_to_typed_array_element_type(builtin_type);
	return type;
}
void GDScriptParser::complete_extents(Node *p_node) {
	while (!nodes_in_progress.is_empty() && nodes_in_progress.back()->get() != p_node) {
		ERR_PRINT("Parser bug: Mismatch in extents tracking stack.");
		nodes_in_progress.pop_back();
	}
	if (nodes_in_progress.is_empty()) {
		ERR_PRINT("Parser bug: Extents tracking stack is empty.");
	} else {
		nodes_in_progress.pop_back();
	}
}
void GDScriptParser::update_extents(Node *p_node) {