Generate StoreGlobal stubs with Hydrogen

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 231b69440299dadb7837501a03658534aa764c47..c9ff22facd6d01480925eacc439e76a0aede8467 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -1886,9 +1886,16 @@ class JSObject: public JSReceiver {
   // Handles the special representation of JS global objects.
   Object* GetNormalizedProperty(LookupResult* result);
 
+  // Sets the property value in a normalized object given (key, value).
+  // Handles the special representation of JS global objects.
+  static Handle<Object> SetNormalizedProperty(Handle<JSObject> object,
+                                              LookupResult* result,
+                                              Handle<Object> value);
+
   // Sets the property value in a normalized object given a lookup result.
   // Handles the special representation of JS global objects.
-  Object* SetNormalizedProperty(LookupResult* result, Object* value);
+  MUST_USE_RESULT MaybeObject* SetNormalizedProperty(LookupResult* result,
+                                                     Object* value);
 
   // Sets the property value in a normalized object given (key, value, details).
   // Handles the special representation of JS global objects.
@@ -8583,6 +8590,14 @@ class PropertyCell: public Cell {
   // property.
   DECL_ACCESSORS(dependent_code, DependentCode)
 
+  // Sets the value of the cell and updates the type field to be the union
+  // of the cell's current type and the value's type. If the change causes
+  // a change of the type of the cell's contents, code dependent on the cell
+  // will be deoptimized.
+  MUST_USE_RESULT MaybeObject* SetValueInferType(
+      Object* value,
+      WriteBarrierMode mode = UPDATE_WRITE_BARRIER);
+
   // Casting.
   static inline PropertyCell* cast(Object* obj);
 
@@ -8610,6 +8625,9 @@ class PropertyCell: public Cell {
 
   void AddDependentCode(Handle<Code> code);
 
+  static Type* UpdateType(Handle<PropertyCell> cell,
+                          Handle<Object> value);
+
  private:
   DECL_ACCESSORS(type_raw, Object)
   DISALLOW_IMPLICIT_CONSTRUCTORS(PropertyCell);