### 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.
if (p_need_indent) {
		if (!consume(GDScriptTokenizer::Token::INDENT, R"(Expected indented block for property after ":".)")) {
			complete_extents(p_variable);
			return nullptr;
		}
	}
	VariableNode *property = p_variable;
	make_completion_context(COMPLETION_PROPERTY_DECLARATION, property);
	if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected "get" or "set" for property declaration.)")) {
		complete_extents(p_variable);
		return nullptr;
	}
	IdentifierNode *function = parse_identifier();
	if (check(GDScriptTokenizer::Token::EQUAL)) {
		p_variable->property = VariableNode::PROP_SETGET;
	} else {
		p_variable->property = VariableNode::PROP_INLINE;
		if (!p_need_indent) {
			push_error("Property with inline code must go to an indented block.");
		}
	}
	bool getter_used = false;
	bool setter_used = false;