--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir/src/org/graalvm/compiler/lir/Variable.java	2019-03-09 03:56:49.592971925 +0100
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir/src/org/graalvm/compiler/lir/Variable.java	2019-03-09 03:56:49.228969351 +0100
@@ -33,7 +33,7 @@
  * Represents a value that is yet to be bound to a machine location (such as a {@link RegisterValue}
  * or {@link StackSlot}) by a register allocator.
  */
-public final class Variable extends AllocatableValue {
+public class Variable extends AllocatableValue {
 
     /**
      * The identifier of the variable. This is a non-zero index in a contiguous 0-based name space.