### 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.
identifier->constant_source = declaration.constant;
				declaration.constant->usages++;
				break;
			case SuiteNode::Local::VARIABLE:
				identifier->source = IdentifierNode::LOCAL_VARIABLE;
				identifier->variable_source = declaration.variable;
				declaration.variable->usages++;
				break;
			case SuiteNode::Local::PARAMETER:
				identifier->source = IdentifierNode::FUNCTION_PARAMETER;
				identifier->parameter_source = declaration.parameter;
				declaration.parameter->usages++;
				break;
			case SuiteNode::Local::FOR_VARIABLE:
				identifier->source = IdentifierNode::LOCAL_ITERATOR;
				identifier->bind_source = declaration.bind;
				declaration.bind->usages++;
				break;
			case SuiteNode::Local::PATTERN_BIND:
				identifier->source = IdentifierNode::LOCAL_BIND;
				identifier->bind_source = declaration.bind;
				declaration.bind->usages++;
				break;
			case SuiteNode::Local::UNDEFINED:
				ERR_FAIL_V_MSG(nullptr, "Undefined local found.");
		}
	}
	return identifier;
}
GDScriptParser::LiteralNode *GDScriptParser::parse_literal() {