Migrate FastCloneShallowObjectStub to TurboFan

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 02efccac14db8b8dda38ab9b44b9e8d23f3062e0..424f5b0116a3d92af36ae8ff677222d3d4348ebc 100644
--- a/src/compiler/code-stub-assembler.cc
+++ b/src/compiler/code-stub-assembler.cc
@@ -523,6 +523,11 @@ Node* CodeStubAssembler::LoadFixedArrayElementInt32Index(
   return Load(MachineType::AnyTagged(), object, offset);
 }
 
+Node* CodeStubAssembler::LoadMapInstanceSize(Node* map) {
+  return Load(MachineType::Uint8(), map,
+              IntPtrConstant(Map::kInstanceSizeOffset - kHeapObjectTag));
+}
+
 Node* CodeStubAssembler::LoadFixedArrayElementSmiIndex(Node* object,
                                                        Node* smi_index,
                                                        int additional_offset) {
@@ -704,6 +709,10 @@ Node* CodeStubAssembler::Allocate(int size_in_bytes, AllocationFlags flags) {
                               limit_address);
 }
 
+Node* CodeStubAssembler::InnerAllocate(Node* previous, int offset) {
+  return IntPtrAdd(previous, IntPtrConstant(offset));
+}
+
 Node* CodeStubAssembler::AllocateHeapNumber() {
   Node* result = Allocate(HeapNumber::kSize, kNone);
   StoreMapNoWriteBarrier(result, HeapNumberMapConstant());