From d976c25d81280c6d4a965c7bf6307be4538437c1 Mon Sep 17 00:00:00 2001
From: Lukas Rytz <lukas.rytz@gmail.com>
Date: Fri, 14 Jul 2023 14:46:45 +0200
Subject: [PATCH] Restore signature of ChangeOwnerTraverser.change

The result type changed from Unit to Any in PR 10389.

This broke the scalatest assert macro, which uses API from
scala.reflect.internal. It shouldn't, binary compatibility
is not checked in the internal package. Hopefully this commit
fixes it anyway.
---
 src/reflect/scala/reflect/internal/Trees.scala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/reflect/scala/reflect/internal/Trees.scala b/src/reflect/scala/reflect/internal/Trees.scala
index a8f7612400d..cf6545c7814 100644
--- a/src/reflect/scala/reflect/internal/Trees.scala
+++ b/src/reflect/scala/reflect/internal/Trees.scala
@@ -1624,7 +1624,7 @@ trait Trees extends api.Trees {
     protected val changedSymbols = mutable.Set.empty[Symbol]
     protected val treeTypes = mutable.Set.empty[Type]
 
-    def change(sym: Symbol) = {
+    def change(sym: Symbol): Unit = {
       if (sym != NoSymbol && sym.owner == oldowner) {
         sym.owner = newowner
         changedSymbols += sym