diff --git a/src/wp-includes/class-wp-query.php b/src/wp-includes/class-wp-query.php
index de7c7b9da1..0ca0572b9d 100644
--- a/src/wp-includes/class-wp-query.php
+++ b/src/wp-includes/class-wp-query.php
@@ -14,21 +14,6 @@
  *
  * @since 1.5.0
  * @since 4.5.0 Removed the `$comments_popup` property.
- *
- * @method bool is_archive()      Is the query for an existing archive page? Month, Year, Category, Author, Post Type archive...
- * @method bool is_date()         Is the query for an existing date archive?
- * @method bool is_day()          Is the query for an existing day archive?
- * @method bool is_comment_feed() Is the query for a comments feed?
- * @method bool is_month()        Is the query for an existing month archive?
- * @method bool is_paged()        Is the query for paged result and not for the first page?
- * @method bool is_preview()      Is the query for a post or page preview?
- * @method bool is_robots()       Is the query for the robots file?
- * @method bool is_search()       Is the query for a search?
- * @method bool is_time()         Is the query for a specific time?
- * @method bool is_trackback()    Is the query for a trackback endpoint call?
- * @method bool is_year()         Is the query for an existing year archive?
- * @method bool is_404()          Is the query a 404 (returns no results)?
- * @method bool is_embed()        Is the query for an embedded post?
  */
 class WP_Query {
 
@@ -3396,14 +3381,22 @@ class WP_Query {
 		if ( in_array( $name, $this->compat_methods ) ) {
 			return call_user_func_array( array( $this, $name ), $arguments );
 		}
-
-		if ( 'is_' === substr( $name, 0, 3 ) && property_exists( $this, $name ) ) {
-			return (bool) $this->{$name};
-		}
-
 		return false;
 	}
 
+	/**
+ 	 * Is the query for an existing archive page?
+ 	 *
+ 	 * Month, Year, Category, Author, Post Type archive...
+	 *
+ 	 * @since 3.1.0
+ 	 *
+ 	 * @return bool
+ 	 */
+	public function is_archive() {
+		return (bool) $this->is_archive;
+	}
+
 	/**
 	 * Is the query for an existing post type archive page?
 	 *
@@ -3611,6 +3604,28 @@ class WP_Query {
 		return false;
 	}
 
+	/**
+	 * Is the query for an existing date archive?
+	 *
+	 * @since 3.1.0
+	 *
+	 * @return bool
+	 */
+	public function is_date() {
+		return (bool) $this->is_date;
+	}
+
+	/**
+	 * Is the query for an existing day archive?
+	 *
+	 * @since 3.1.0
+	 *
+	 * @return bool
+	 */
+	public function is_day() {
+		return (bool) $this->is_day;
+	}
+
 	/**
 	 * Is the query for a feed?
 	 *
@@ -3628,6 +3643,17 @@ class WP_Query {
 		return in_array( $qv, (array) $feeds );
 	}
 
+	/**
+	 * Is the query for a comments feed?
+	 *
+	 * @since 3.1.0
+	 *
+	 * @return bool
+	 */
+	public function is_comment_feed() {
+		return (bool) $this->is_comment_feed;
+	}
+
 	/**
 	 * Is the query for the front page of the site?
 	 *
@@ -3674,6 +3700,17 @@ class WP_Query {
 		return (bool) $this->is_home;
 	}
 
+	/**
+	 * Is the query for an existing month archive?
+	 *
+	 * @since 3.1.0
+	 *
+	 * @return bool
+	 */
+	public function is_month() {
+		return (bool) $this->is_month;
+	}
+
 	/**
 	 * Is the query for an existing single page?
 	 *
@@ -3721,6 +3758,50 @@ class WP_Query {
 		return false;
 	}
 
+	/**
+	 * Is the query for paged result and not for the first page?
+	 *
+	 * @since 3.1.0
+	 *
+	 * @return bool
+	 */
+	public function is_paged() {
+		return (bool) $this->is_paged;
+	}
+
+	/**
+	 * Is the query for a post or page preview?
+	 *
+	 * @since 3.1.0
+	 *
+	 * @return bool
+	 */
+	public function is_preview() {
+		return (bool) $this->is_preview;
+	}
+
+	/**
+	 * Is the query for the robots file?
+	 *
+	 * @since 3.1.0
+	 *
+	 * @return bool
+	 */
+	public function is_robots() {
+		return (bool) $this->is_robots;
+	}
+
+	/**
+	 * Is the query for a search?
+	 *
+	 * @since 3.1.0
+	 *
+	 * @return bool
+	 */
+	public function is_search() {
+		return (bool) $this->is_search;
+	}
+
 	/**
 	 * Is the query for an existing single post?
 	 *
@@ -3792,6 +3873,61 @@ class WP_Query {
 		return in_array( $post_obj->post_type, (array) $post_types );
 	}
 
+	/**
+	 * Is the query for a specific time?
+	 *
+	 * @since 3.1.0
+	 *
+	 * @return bool
+	 */
+	public function is_time() {
+		return (bool) $this->is_time;
+	}
+
+	/**
+	 * Is the query for a trackback endpoint call?
+	 *
+	 * @since 3.1.0
+	 *
+	 * @return bool
+	 */
+	public function is_trackback() {
+		return (bool) $this->is_trackback;
+	}
+
+	/**
+	 * Is the query for an existing year archive?
+	 *
+	 * @since 3.1.0
+	 *
+	 * @return bool
+	 */
+	public function is_year() {
+		return (bool) $this->is_year;
+	}
+
+	/**
+	 * Is the query a 404 (returns no results)?
+	 *
+	 * @since 3.1.0
+	 *
+	 * @return bool
+	 */
+	public function is_404() {
+		return (bool) $this->is_404;
+	}
+
+	/**
+	 * Is the query for an embedded post?
+	 *
+	 * @since 4.4.0
+	 *
+	 * @return bool
+	 */
+	public function is_embed() {
+		return (bool) $this->is_embed;
+	}
+
 	/**
 	 * Is the query the main query?
 	 *