Code Modernization: Avoid NAN coercion/cast deprecation warnings.

Coercing `INF` or `NAN` to a string or casting to int is deprecated in PHP 8.5+.

This change addresses two occurrences in core where this was happening.

Props swissspidy.
Fixes #64047. See #63061.

git-svn-id: https://develop.svn.wordpress.org/trunk@60811 602fd350-edb4-49c9-b593-d223f7449a82

Author: swissspidy

src/wp-includes/deprecated.php

@@ -3371,7 +3371,7 @@ function wp_convert_bytes_to_hr( $bytes ) {
 
 	$units = array( 0 => 'B', 1 => 'KB', 2 => 'MB', 3 => 'GB', 4 => 'TB' );
 	$log   = log( $bytes, KB_IN_BYTES );
-	$power = (int) $log;
+	$power = ! is_nan( $log ) && ! is_infinite( $log ) ? (int) $log : 0;
 	$size  = KB_IN_BYTES ** ( $log - $power );
 
 	if ( ! is_nan( $size ) && array_key_exists( $power, $units ) ) {

tests/phpunit/tests/option/wpPrimeOptionCaches.php

@@ -455,7 +455,6 @@ public function data_option_types() {
 			'empty object'                      => array( new stdClass() ),
 			'populated object'                  => array( (object) array( 'string' ) ),
 			'INF'                               => array( INF ),
-			'NAN'                               => array( NAN ),
 		);
 	}
 }