When spilling live range with not register uses inside the loop try to move spilling out of the loo…

src/lithium-allocator.h

Index: src/lithium-allocator.h
diff --git a/src/lithium-allocator.h b/src/lithium-allocator.h
index 5b05263575dcc45d2d1f9e53ee8066054660d49f..6e9d584a17bd575c2ea3ff080da69868e0948009 100644
--- a/src/lithium-allocator.h
+++ b/src/lithium-allocator.h
@@ -376,6 +376,10 @@ class LiveRange: public ZoneObject {
   void Verify() const;
 #endif
 
+  void ResetLastProcessedUse() {
+    last_processed_use_ = NULL;
+  }
+
  private:
   void ConvertOperands(Zone* zone);
   UseInterval* FirstSearchIntervalForPosition(LifetimePosition position) const;