VectorICs: keyed element loads were kicking out non-smi keys unnecessarily

src/arm/full-codegen-arm.cc

Index: src/arm/full-codegen-arm.cc
diff --git a/src/arm/full-codegen-arm.cc b/src/arm/full-codegen-arm.cc
index 3f26b3fe4d80dad362a614df1cddd7f48a43f9c7..b267d93fa8cab01391f3c4998059a9c698d17f66 100644
--- a/src/arm/full-codegen-arm.cc
+++ b/src/arm/full-codegen-arm.cc
@@ -4113,7 +4113,7 @@ void FullCodeGenerator::EmitStringCharCodeAt(CallRuntime* expr) {
   __ jmp(&done);
 
   NopRuntimeCallHelper call_helper;
-  generator.GenerateSlow(masm_, call_helper);
+  generator.GenerateSlow(masm_, NOT_PART_OF_IC_HANDLER, call_helper);
 
   __ bind(&done);
   context()->Plug(result);
@@ -4160,7 +4160,7 @@ void FullCodeGenerator::EmitStringCharAt(CallRuntime* expr) {
   __ jmp(&done);
 
   NopRuntimeCallHelper call_helper;
-  generator.GenerateSlow(masm_, call_helper);
+  generator.GenerateSlow(masm_, NOT_PART_OF_IC_HANDLER, call_helper);
 
   __ bind(&done);
   context()->Plug(result);