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

src/arm64/full-codegen-arm64.cc

Index: src/arm64/full-codegen-arm64.cc
diff --git a/src/arm64/full-codegen-arm64.cc b/src/arm64/full-codegen-arm64.cc
index a219ac05af176b01247d56c5fae31ac8babb2618..33fc2b926d5fd931d845e441b6430681040188d3 100644
--- a/src/arm64/full-codegen-arm64.cc
+++ b/src/arm64/full-codegen-arm64.cc
@@ -3815,7 +3815,7 @@ void FullCodeGenerator::EmitStringCharCodeAt(CallRuntime* expr) {
   __ B(&done);
 
   NopRuntimeCallHelper call_helper;
-  generator.GenerateSlow(masm_, call_helper);
+  generator.GenerateSlow(masm_, NOT_PART_OF_IC_HANDLER, call_helper);
 
   __ Bind(&done);
   context()->Plug(result);
@@ -3861,7 +3861,7 @@ void FullCodeGenerator::EmitStringCharAt(CallRuntime* expr) {
   __ B(&done);
 
   NopRuntimeCallHelper call_helper;
-  generator.GenerateSlow(masm_, call_helper);
+  generator.GenerateSlow(masm_, NOT_PART_OF_IC_HANDLER, call_helper);
 
   __ Bind(&done);
   context()->Plug(result);