diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index 655bb9bbc807c..0af28d696b2af 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -23,7 +23,6 @@ includes:
 	# and the list between the markers. Do not edit that list by hand.
 	# phpstan:baselines start
 	- tests/phpstan/baselines/argument.type.neon
-	- tests/phpstan/baselines/argument.unresolvableType.neon
 	- tests/phpstan/baselines/assign.propertyType.neon
 	- tests/phpstan/baselines/binaryOp.invalid.neon
 	- tests/phpstan/baselines/booleanAnd.alwaysFalse.neon
diff --git a/src/wp-includes/post.php b/src/wp-includes/post.php
index 5806d879f1c5e..e186de3c5ce1c 100644
--- a/src/wp-includes/post.php
+++ b/src/wp-includes/post.php
@@ -4707,10 +4707,11 @@ function wp_get_post_terms( $post_id = 0, $taxonomy = 'post_tag', $args = array(
  *
  * @see get_posts()
  *
- * @param array  $args   Optional. Arguments to retrieve posts. Default empty array.
- * @param string $output Optional. The required return type. One of OBJECT or ARRAY_A, which
- *                       correspond to a WP_Post object or an associative array, respectively.
- *                       Default ARRAY_A.
+ * @param array|int $args   Optional. Arguments to retrieve posts. Passing an integer number
+ *                          of posts is deprecated since 3.1.0. Default empty array.
+ * @param string    $output Optional. The required return type. One of OBJECT or ARRAY_A, which
+ *                          correspond to a WP_Post object or an associative array, respectively.
+ *                          Default ARRAY_A.
  * @return array|false Array of recent posts, where the type of each element is determined
  *                     by the `$output` parameter. Empty array on failure.
  *
diff --git a/tests/phpstan/baselines/argument.unresolvableType.neon b/tests/phpstan/baselines/argument.unresolvableType.neon
deleted file mode 100644
index 3e8cdcb76c85d..0000000000000
--- a/tests/phpstan/baselines/argument.unresolvableType.neon
+++ /dev/null
@@ -1,25 +0,0 @@
-# PHPStan baseline for the `argument.unresolvableType` errors in WordPress core.
-#
-# https://phpstan.org/error-identifiers/argument.unresolvableType
-#
-# Each entry is scoped to a single file and carries an exact occurrence count,
-# so that a new instance is reported as a new error rather than being absorbed
-# silently. Fixing an occurrence therefore means decrementing or removing its
-# entry here as part of the same change.
-#
-# The goal is to empty this file and delete it, along with the `includes` entry
-# for it in phpstan.neon.dist.
-#
-# Generated by `composer phpstan:baselines`. Do not edit by hand; regenerate with
-#
-#     composer phpstan:baselines -- --identifier=argument.unresolvableType
-#
-# which reruns the analysis with this file suppressed so the errors surface again.
-
-parameters:
-	ignoreErrors:
-		-
-			message: '#^Parameter \#1 \$maybeint of function absint contains unresolvable type\.$#'
-			identifier: argument.unresolvableType
-			count: 1
-			path: ../../../src/wp-includes/post.php