AST pretty-printing drops meaningful parentheses around RHS of `instanceof`

[TimWolla]

Description

The following code:

<?php

$foo = new stdClass();
const bar = 'stdClass';

try {
	assert(!$foo instanceof (bar));
} catch (AssertionError $e) {
	echo $e->getMessage(), PHP_EOL;
}

Resulted in this output:

assert(!$foo instanceof bar)

But I expected this output instead:

assert(!$foo instanceof (bar))

PHP Version

PHP 8.6.0-dev (cli) (built: Jun 21 2026 18:51:23) (ZTS DEBUG)
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Operating System

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