Use a stub in crankshaft for grow store arrays.

src/arm64/interface-descriptors-arm64.cc

Index: src/arm64/interface-descriptors-arm64.cc
diff --git a/src/arm64/interface-descriptors-arm64.cc b/src/arm64/interface-descriptors-arm64.cc
index 57eebcc3b5c078d28b55f33065ae72c5e99ac7eb..f7e6c5f6d484a788d81ecea77ad6914f19fabe6f 100644
--- a/src/arm64/interface-descriptors-arm64.cc
+++ b/src/arm64/interface-descriptors-arm64.cc
@@ -60,6 +60,12 @@ const Register MathPowTaggedDescriptor::exponent() { return x11; }
 const Register MathPowIntegerDescriptor::exponent() { return x12; }
 
 
+// IC register specifications
+const Register GrowArrayElementsDescriptor::ObjectRegister() { return x0; }
+const Register GrowArrayElementsDescriptor::KeyRegister() { return x1; }
+const Register GrowArrayElementsDescriptor::CapacityRegister() { return x2; }
+
+
 void FastNewClosureDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   // cp: context
   // x2: function info