Change PC for OSR entries to point to something more sensible (i.e. the first UnknownOsrValue), rem…

src/deoptimizer.h

Index: src/deoptimizer.h
diff --git a/src/deoptimizer.h b/src/deoptimizer.h
index 5569f7ffd87d12baff93da0c5eb38a3d7b840d41..190abd1b1ada16f1fc206ee315d58a2f34b2ee48 100644
--- a/src/deoptimizer.h
+++ b/src/deoptimizer.h
@@ -707,11 +707,7 @@ class Translation BASE_EMBEDDED {
     UINT32_STACK_SLOT,
     DOUBLE_STACK_SLOT,
     LITERAL,
-    ARGUMENTS_OBJECT,
-
-    // A prefix indicating that the next command is a duplicate of the one
-    // that follows it.
-    DUPLICATE
+    ARGUMENTS_OBJECT
   };
 
   Translation(TranslationBuffer* buffer, int frame_count, int jsframe_count,
@@ -743,7 +739,6 @@ class Translation BASE_EMBEDDED {
   void StoreDoubleStackSlot(int index);
   void StoreLiteral(int literal_id);
   void StoreArgumentsObject(bool args_known, int args_index, int args_length);
-  void MarkDuplicate();
 
   Zone* zone() const { return zone_; }