[turbofan] Add type to the allocation operator.

src/compiler/simplified-operator.h

Index: src/compiler/simplified-operator.h
diff --git a/src/compiler/simplified-operator.h b/src/compiler/simplified-operator.h
index ed4f0cfe3dfd1b045e55db14296301f64d595956..f0017970474549085966df937ebf4229e3885861 100644
--- a/src/compiler/simplified-operator.h
+++ b/src/compiler/simplified-operator.h
@@ -245,8 +245,30 @@ NumberOperationHint NumberOperationHintOf(const Operator* op)
 int FormalParameterCountOf(const Operator* op) WARN_UNUSED_RESULT;
 bool IsRestLengthOf(const Operator* op) WARN_UNUSED_RESULT;
 
+class AllocateParameters {
+ public:
+  AllocateParameters(Type* type, PretenureFlag pretenure)
+      : type_(type), pretenure_(pretenure) {}
+
+  Type* type() const { return type_; }
+  PretenureFlag pretenure() const { return pretenure_; }
+
+ private:
+  Type* type_;
+  PretenureFlag pretenure_;
+};
+
+size_t hash_value(AllocateParameters);
+
+V8_EXPORT_PRIVATE std::ostream& operator<<(std::ostream&, AllocateParameters);
+
+bool operator==(AllocateParameters const&, AllocateParameters const&);
+bool operator!=(AllocateParameters const&, AllocateParameters const&);
+
 PretenureFlag PretenureFlagOf(const Operator* op) WARN_UNUSED_RESULT;
 
+Type* AllocateTypeOf(const Operator* op) WARN_UNUSED_RESULT;
+
 UnicodeEncoding UnicodeEncodingOf(const Operator*) WARN_UNUSED_RESULT;
 
 // Interface for building simplified operators, which represent the
@@ -442,7 +464,7 @@ class V8_EXPORT_PRIVATE SimplifiedOperatorBuilder final
   // transition-elements-kind object, from-map, to-map
   const Operator* TransitionElementsKind(ElementsTransition transition);
 
-  const Operator* Allocate(PretenureFlag pretenure = NOT_TENURED);
+  const Operator* Allocate(Type* type, PretenureFlag pretenure = NOT_TENURED);
 
   const Operator* LoadField(FieldAccess const&);
   const Operator* StoreField(FieldAccess const&);