[php-src] Issue #22373: AST pretty-printing drops meaningful parentheses surrounding property access

Issue: https://github.com/php/php-src/issues/22373
Author: TimWolla

### Description

The following code:

```php
<?php

try {
assert(false && new class {
	public function __construct(public Closure $f = strrev(...)) {
		var_dump(($this->f)('abc'));
	}
});
} catch (AssertionError $e) {
	echo $e->getMessage(), PHP_EOL;
}
```

Resulted in this output:
```
assert(false && new class {
    public function __construct(public Closure $f = strrev(...)) {
        var_dump($this->f('abc'));
    }

})
```

But I expected this output instead:
```
assert(false && new class {
    public function __construct(public Closure $f = strrev(...)) {
        var_dump(($this->f)('abc'));
    }

})
```

because the parentheses around `$this->f` are needed to disambiguate.

### PHP Version

```plain
PHP 8.6.0-dev (cli) (built: Jun 21 2026 12:05:35) (NTS DEBUG)
Copyright © The PHP Group and Contributors
Zend Engine v4.6.0-dev, Copyright © Zend by Perforce
    with Zend OPcache v8.6.0-dev, Copyright ©, by Zend by Perforce
```

### Operating System

_No response_