Check that index and length are Smi in bounds check.

src/arm/lithium-codegen-arm.h

Index: src/arm/lithium-codegen-arm.h
diff --git a/src/arm/lithium-codegen-arm.h b/src/arm/lithium-codegen-arm.h
index d380f4bcad459c54486abee0cf40ac8302d94e5f..0db586f846bcc2488abfa3c88e303cbabb6d9432 100644
--- a/src/arm/lithium-codegen-arm.h
+++ b/src/arm/lithium-codegen-arm.h
@@ -297,6 +297,10 @@ 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.