Vector ICs: Introduce Store and KeyedStore IC code stubs.

src/x64/interface-descriptors-x64.cc

Index: src/x64/interface-descriptors-x64.cc
diff --git a/src/x64/interface-descriptors-x64.cc b/src/x64/interface-descriptors-x64.cc
index 08edaac0109a941d57ad98732f8c668c0ff18093..982a9df9cf3b0d59aa601b0218f08d408b6135f2 100644
--- a/src/x64/interface-descriptors-x64.cc
+++ b/src/x64/interface-descriptors-x64.cc
@@ -27,6 +27,12 @@ const Register StoreDescriptor::NameRegister() { return rcx; }
 const Register StoreDescriptor::ValueRegister() { return rax; }
 
 
+const Register VectorStoreICTrampolineDescriptor::SlotRegister() { return rdi; }
+
+
+const Register VectorStoreICDescriptor::VectorRegister() { return rbx; }
+
+
 const Register StoreTransitionDescriptor::MapRegister() { return rbx; }