Check that index and length are Smi in bounds check.

src/ia32/lithium-codegen-ia32.h

Index: src/ia32/lithium-codegen-ia32.h
diff --git a/src/ia32/lithium-codegen-ia32.h b/src/ia32/lithium-codegen-ia32.h
index 42d383eacfedd465666422f6965cadc831ec110d..1d77a0742726a6b5ba35f76278e63c3f03d185fd 100644
--- a/src/ia32/lithium-codegen-ia32.h
+++ b/src/ia32/lithium-codegen-ia32.h
@@ -284,6 +284,10 @@ class LCodeGen BASE_EMBEDDED {
                         bool deoptimize_on_minus_zero,
                         LEnvironment* env);
 
+  void DeoptIfTaggedButNotSmi(LEnvironment* environment,
+                              HValue* value,
+                              LOperand* operand);
+
   // Emits optimized code for typeof x == "y".  Modifies input register.
   // Returns the condition on which a final split to
   // true and false label should be made, to optimize fallthrough.