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-rw-r--r--src/compiler/scala/tools/nsc/backend/icode/analysis/CopyPropagation.scala2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/compiler/scala/tools/nsc/backend/icode/analysis/CopyPropagation.scala b/src/compiler/scala/tools/nsc/backend/icode/analysis/CopyPropagation.scala
index 0c3f92f13f..9d48d7a0d3 100644
--- a/src/compiler/scala/tools/nsc/backend/icode/analysis/CopyPropagation.scala
+++ b/src/compiler/scala/tools/nsc/backend/icode/analysis/CopyPropagation.scala
@@ -27,7 +27,7 @@ abstract class CopyPropagation {
case object This extends Location
/** Values that can be on the stack. */
- abstract class Value { }
+ sealed abstract class Value { }
case class Record(cls: Symbol, bindings: mutable.Map[Symbol, Value]) extends Value { }
/** The value of some location in memory. */
case class Deref(l: Location) extends Value