[turbofan] Add support for transitioning stores to double fields.

src/interface-descriptors.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/interface-descriptors.h"
 
 namespace v8 {
 namespace internal {
 
 namespace {
@@ skipping 57 matching lines @@
     return #NAME " Descriptor";
     INTERFACE_DESCRIPTOR_LIST(DEF_CASE)
 #undef DEF_CASE
     case CallDescriptors::NUMBER_OF_DESCRIPTORS:
       break;
   }
   return "";
 }
 
 
+void AllocateMutableHeapNumberDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  data->InitializePlatformSpecific(0, nullptr, nullptr);
+}
+
+
 Type::FunctionType* LoadDescriptor::BuildCallInterfaceDescriptorFunctionType(
     Isolate* isolate, int paramater_count) {
   Zone* zone = isolate->interface_descriptor_zone();
   Type::FunctionType* function =
       Type::FunctionType::New(AnyTagged(zone), Type::Undefined(), 3, zone);
   function->InitParameter(0, AnyTagged(zone));
   function->InitParameter(1, AnyTagged(zone));
   function->InitParameter(2, SmiType(zone));
   return function;
 }
@@ skipping 451 matching lines @@
       Type::FunctionType::New(AnyTagged(zone), Type::Undefined(), 5, zone);
   function->InitParameter(0, Type::Receiver());
   function->InitParameter(1, SmiType(zone));
   function->InitParameter(2, AnyTagged(zone));
   function->InitParameter(3, AnyTagged(zone));
   function->InitParameter(4, AnyTagged(zone));
   return function;
 }
 }  // namespace internal
 }  // namespace v8