[stubs] Port StoreFastElementsStub to TurboFan.

src/compiler/raw-machine-assembler.h

Index: src/compiler/raw-machine-assembler.h
diff --git a/src/compiler/raw-machine-assembler.h b/src/compiler/raw-machine-assembler.h
index ded9dad094eb94cac3558cda8c67e91d76cbdb59..0e7219cfbe09eacc84d7a4b29f0d3dff551ae98b 100644
--- a/src/compiler/raw-machine-assembler.h
+++ b/src/compiler/raw-machine-assembler.h
@@ -135,6 +135,7 @@ class RawMachineAssembler {
     return AddNode(machine()->Store(StoreRepresentation(rep, write_barrier)),
                    base, index, value);
   }
+  Node* Retain(Node* value) { return AddNode(common()->Retain(), value); }
 
   // Unaligned memory operations
   Node* UnalignedLoad(MachineType rep, Node* base) {
@@ -659,6 +660,9 @@ class RawMachineAssembler {
   Node* Float64InsertHighWord32(Node* a, Node* b) {
     return AddNode(machine()->Float64InsertHighWord32(), a, b);
   }
+  Node* Float64SilenceNaN(Node* a) {
+    return AddNode(machine()->Float64SilenceNaN(), a);
+  }
 
   // Stack operations.
   Node* LoadStackPointer() { return AddNode(machine()->LoadStackPointer()); }