### 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.
switch (mode) {
			case BRIEF:
				p_brief = (p_brief.length() == 0) ? doc_line : p_brief + line_join + doc_line;
				break;
			case DESC:
				p_desc = (p_desc.length() == 0) ? doc_line : p_desc + line_join + doc_line;
				break;
			case TUTORIALS:
				p_tutorials.append(Pair<String, String>(title, link));
				break;
			case DONE:
				break;
		}
	}
	if (current_class->members.size() > 0) {
		const ClassNode::Member &m = current_class->members[0];
		int first_member_line = m.get_line();
		if (first_member_line == line) {
			p_brief = "";
			p_desc = "";
			p_tutorials.clear();
		}
	}
}
#endif 
GDScriptParser::ParseRule *GDScriptParser::get_rule(GDScriptTokenizer::Token::Type p_token_type) {
	
	
	
	static ParseRule rules[] = {