diff --git a/platform/util-ex/src/com/intellij/util/containers/LookbackSequence.kt b/platform/util-ex/src/com/intellij/util/containers/LookbackSequence.kt
index c0353811f3a1..972c2dc4420f 100644
--- a/platform/util-ex/src/com/intellij/util/containers/LookbackSequence.kt
+++ b/platform/util-ex/src/com/intellij/util/containers/LookbackSequence.kt
@@ -1,4 +1,4 @@
-// Copyright 2000-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+// Copyright 2000-2023 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.util.containers
 
 typealias LookbackValue<T> = Pair<T, T?>
@@ -28,4 +28,8 @@ private class LookbackIterator<T>(private val iterator: Iterator<T>) : Iterator<
   }
 }
 
-fun <K, V : Any> Map<K, V>.reverse(): Map<V, K> = map { (k, v) -> v to k }.toMap()
+@Deprecated(
+  message = "Moved to another file",
+  level = DeprecationLevel.HIDDEN,
+)
+fun <K, V : Any> Map<K, V>.reverse(): Map<V, K> = reverse()
diff --git a/platform/util/src/com/intellij/util/containers/util.kt b/platform/util/src/com/intellij/util/containers/util.kt
index d02f4904467f..1377038d0889 100644
--- a/platform/util/src/com/intellij/util/containers/util.kt
+++ b/platform/util/src/com/intellij/util/containers/util.kt
@@ -320,3 +320,5 @@ fun <Node> generateRecursiveSequence(initialSequence: Sequence<Node>, children:
  * Returns a new sequence either of single given element, if it is not null, or empty sequence if the element is null.
  */
 fun <T : Any> sequenceOfNotNull(element: T?): Sequence<T> = if (element == null) emptySequence() else sequenceOf(element)
+
+fun <K, V : Any> Map<K, V>.reverse(): Map<V, K> = map { (k, v) -> v to k }.toMap()