Extract property hook bodies properly

[xHeaven]

This PR aims to fix this issue: tempestphp/tempest-framework#866

Reproduction:

$printer = new Printer();
$from = ClassType::from(Foo::class, withBodies: true);
$fromCode = ClassType::fromCode(file_get_contents(__DIR__ . '/Foo.php'));
echo $printer->printClass($from) . PHP_EOL;
echo $printer->printClass($fromCode);

// Foo.php
class Foo
{
    public $bar {
        get => 'test string';
    }
}

Output before:

class Foo
{
	public $bar {
		get {
		}
	}
}

class Foo
{
	public $bar {
		get => 'test string';
	}
}

Output after:

class Foo
{
	public $bar {
		get => 'test string';
	}
}

class Foo
{
	public $bar {
		get => 'test string';
	}
}