Merged: [crankshaft] Range analysis should not rely on overflowed ranges.

src/crankshaft/hydrogen-instructions.h

Index: src/crankshaft/hydrogen-instructions.h
diff --git a/src/crankshaft/hydrogen-instructions.h b/src/crankshaft/hydrogen-instructions.h
index b8d6fbbc3017c5589a4883f0f48e9440afaaf008..41b1e1be8bf0471e5075856405d06d65370c98b7 100644
--- a/src/crankshaft/hydrogen-instructions.h
+++ b/src/crankshaft/hydrogen-instructions.h
@@ -237,6 +237,7 @@ class Range final : public ZoneObject {
     lower_ = Max(lower_, Smi::kMinValue);
     upper_ = Min(upper_, Smi::kMaxValue);
   }
+  void Clear();
   void KeepOrder();
 #ifdef DEBUG
   void Verify() const;