From e7ffd7e1486a04a2d9e5642c35455fdb556d3554 Mon Sep 17 00:00:00 2001
From: xuwei-k <6b656e6a69@gmail.com>
Date: Wed, 6 Jun 2018 00:23:27 +0900
Subject: Scala 2.13.0-M4

---
 build.sbt                                 | 4 ++--
 core/shared/src/main/scala/magnolia.scala | 3 +--
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/build.sbt b/build.sbt
index 0239960..697b69c 100644
--- a/build.sbt
+++ b/build.sbt
@@ -12,10 +12,10 @@ lazy val core = crossProject(JVMPlatform, JSPlatform, NativePlatform)
     scalaVersion := crossScalaVersions.value.head
   )
   .jvmSettings(
-    crossScalaVersions := "2.12.4" :: "2.13.0-M3" :: "2.11.12" :: Nil
+    crossScalaVersions := "2.12.4" :: "2.13.0-M4" :: "2.11.12" :: Nil
   )
   .jsSettings(
-    crossScalaVersions := "2.12.4" :: "2.11.12" :: Nil
+    crossScalaVersions := "2.12.4" :: "2.13.0-M4" :: "2.11.12" :: Nil
   )
   .nativeSettings(
     crossScalaVersions := "2.11.12" :: Nil
diff --git a/core/shared/src/main/scala/magnolia.scala b/core/shared/src/main/scala/magnolia.scala
index 6001977..1d45fa7 100644
--- a/core/shared/src/main/scala/magnolia.scala
+++ b/core/shared/src/main/scala/magnolia.scala
@@ -15,7 +15,6 @@
 package magnolia
 
 import scala.annotation.compileTimeOnly
-import scala.collection.breakOut
 import scala.collection.mutable
 import scala.language.existentials
 import scala.language.higherKinds
@@ -518,7 +517,7 @@ private[magnolia] object CompileTimeState {
       (frames.drop(1), frames).zipped.collect {
         case (Frame(path, tp1, _), Frame(_, tp2, _))
           if !(tp1 =:= tp2) => path
-      } (breakOut)
+      }.toList
 
     override def toString: String =
       frames.mkString("magnolia stack:\n", "\n", "\n")
-- 
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