[turbofan] Do not use the self reference for turbofan functions.

src/compiler/code-generator.cc

Index: src/compiler/code-generator.cc
diff --git a/src/compiler/code-generator.cc b/src/compiler/code-generator.cc
index 4c20fc56ba7db93218543902da71954345908cc1..aa3d1eb1a25c3a273a629e8ef7a95cd8fc997c4c 100644
--- a/src/compiler/code-generator.cc
+++ b/src/compiler/code-generator.cc
@@ -41,7 +41,7 @@ CodeGenerator::CodeGenerator(Frame* frame, Linkage* linkage,
       labels_(zone()->NewArray<Label>(code->InstructionBlockCount())),
       current_block_(RpoNumber::Invalid()),
       current_source_position_(SourcePosition::Unknown()),
-      masm_(info->isolate(), nullptr, 0, CodeObjectRequired::kYes),
+      masm_(info->isolate(), nullptr, 0, CodeObjectRequired::kNo),
       resolver_(this),
       safepoints_(code->zone()),
       handlers_(code->zone()),
@@ -203,8 +203,9 @@ Handle<Code> CodeGenerator::GenerateCode() {
 
   safepoints()->Emit(masm(), frame()->GetTotalFrameSlotCount());
 
-  Handle<Code> result =
-      v8::internal::CodeGenerator::MakeCodeEpilogue(masm(), nullptr, info);
+  // Turbofan does not use the self reference.
+  Handle<Code> result = v8::internal::CodeGenerator::MakeCodeEpilogue(
+      masm(), nullptr, info, Handle<Object>());
   result->set_is_turbofanned(true);
   result->set_stack_slots(frame()->GetTotalFrameSlotCount());
   result->set_safepoint_table_offset(safepoints()->GetCodeOffset());