Move FastAccessorAssembler from RawMachineAssembler to CodeStubAssembler.

src/compiler/code-stub-assembler.cc

Index: src/compiler/code-stub-assembler.cc
diff --git a/src/compiler/code-stub-assembler.cc b/src/compiler/code-stub-assembler.cc
index 45f47d3310933dc50a8b8feb7ec5c12149c5a844..f29ff826029f430f1286b37b914169e685383dd0 100644
--- a/src/compiler/code-stub-assembler.cc
+++ b/src/compiler/code-stub-assembler.cc
@@ -28,12 +28,27 @@ CodeStubAssembler::CodeStubAssembler(Isolate* isolate, Zone* zone,
                                      const CallInterfaceDescriptor& descriptor,
                                      Code::Flags flags, const char* name,
                                      size_t result_size)
-    : raw_assembler_(new RawMachineAssembler(
-          isolate, new (zone) Graph(zone),
+    : CodeStubAssembler(
+          isolate, zone,
           Linkage::GetStubCallDescriptor(
               isolate, zone, descriptor, descriptor.GetStackParameterCount(),
               CallDescriptor::kNoFlags, Operator::kNoProperties,
-              MachineType::AnyTagged(), result_size))),
+              MachineType::AnyTagged(), result_size),
+          flags, name) {}
+
+CodeStubAssembler::CodeStubAssembler(Isolate* isolate, Zone* zone,
+                                     int parameter_count, Code::Flags flags,
+                                     const char* name)
+    : CodeStubAssembler(isolate, zone, Linkage::GetJSCallDescriptor(
+                                           zone, false, parameter_count,
+                                           CallDescriptor::kNoFlags),
+                        flags, name) {}
+
+CodeStubAssembler::CodeStubAssembler(Isolate* isolate, Zone* zone,
+                                     CallDescriptor* call_descriptor,
+                                     Code::Flags flags, const char* name)
+    : raw_assembler_(new RawMachineAssembler(isolate, new (zone) Graph(zone),
+                                             call_descriptor)),
       flags_(flags),
       name_(name),
       code_generated_(false),
@@ -86,6 +101,14 @@ Node* CodeStubAssembler::ExternalConstant(ExternalReference address) {
   return raw_assembler_->ExternalConstant(address);
 }
 
+Node* CodeStubAssembler::NullConstant() {
+  return LoadRoot(Heap::kNullValueRootIndex);
+}
+
+Node* CodeStubAssembler::UndefinedConstant() {
+  return LoadRoot(Heap::kUndefinedValueRootIndex);
+}
+
 Node* CodeStubAssembler::Parameter(int value) {
   return raw_assembler_->Parameter(value);
 }
@@ -151,8 +174,17 @@ Node* CodeStubAssembler::LoadBufferObject(Node* buffer, int offset) {
 }
 
 Node* CodeStubAssembler::LoadObjectField(Node* object, int offset) {
-  return raw_assembler_->Load(MachineType::AnyTagged(), object,
-                              IntPtrConstant(offset - kHeapObjectTag));
+  return LoadObjectFieldTyped(object, offset, MachineType::AnyTagged());
+}
+
+Node* CodeStubAssembler::LoadObjectFieldTyped(Node* object, int offset,
+                                              MachineType rep) {
+  return LoadNativeFieldTyped(object, offset - kHeapObjectTag, rep);
+}
+
+Node* CodeStubAssembler::LoadNativeFieldTyped(Node* object, int offset,
+                                              MachineType rep) {
+  return raw_assembler_->Load(rep, object, IntPtrConstant(offset));
 }
 
 Node* CodeStubAssembler::LoadFixedArrayElementSmiIndex(Node* object,