som-sblock-final.patch

diff --git a/src/som/vmobjects/SBlock.java b/src/som/vmobjects/SBlock.java
index fc38982..bd1dde1 100644
--- a/src/som/vmobjects/SBlock.java
+++ b/src/som/vmobjects/SBlock.java
@@ -96,11 +96,11 @@ public abstract class SBlock extends SAbstractObject {
     return method;
   }

-  public MaterializedFrame getContext() {
+  public final MaterializedFrame getContext() {
     return CompilerDirectives.unsafeFrameCast(context);
   }

-  public Object getOuterSelf() {
+  public final Object getOuterSelf() {
     return FrameUtil.getObjectSafe(getContext(), outerSelfSlot);
   }