Coding Standards: Move count() usage in wp_dashboard_recent_comments().

While the rule to discourage using functions like `count()` in a loop condition is a recommendation/best practice rule from the `WordPress-Extra` ruleset and does not directly apply to WordPress core, this is intended as a minor readability and code clarity improvement.

Follow-up to [10090], [17556], [20609], [26144].

Props krunal265, johnbillion, audrasjb, dhruvang21, SergeyBiryukov.
Fixes #56499.

git-svn-id: https://develop.svn.wordpress.org/trunk@60643 602fd350-edb4-49c9-b593-d223f7449a82

Author: SergeyBiryukov

src/wp-admin/includes/dashboard.php

@@ -1074,8 +1074,10 @@ function wp_dashboard_recent_comments( $total_items = 5 ) {
 		$comments_query['status'] = 'approve';
 	}
 
-	while ( count( $comments ) < $total_items && $possible = get_comments( $comments_query ) ) {
-		if ( ! is_array( $possible ) ) {
+	do {
+		$possible = get_comments( $comments_query );
+
+		if ( empty( $possible ) || ! is_array( $possible ) ) {
 			break;
 		}
 
@@ -1088,16 +1090,17 @@ function wp_dashboard_recent_comments( $total_items = 5 ) {
 				continue;
 			}
 
-			$comments[] = $comment;
+			$comments[]     = $comment;
+			$comments_count = count( $comments );
 
-			if ( count( $comments ) === $total_items ) {
+			if ( $comments_count === $total_items ) {
 				break 2;
 			}
 		}
 
 		$comments_query['offset'] += $comments_query['number'];
 		$comments_query['number']  = $total_items * 10;
-	}
+	} while ( $comments_count < $total_items );
 
 	if ( $comments ) {
 		echo '<div id="latest-comments" class="activity-block table-view-list">';