[turbofan] Lower unmapped arguments objects in inline frame.

src/compiler/access-builder.h

Index: src/compiler/access-builder.h
diff --git a/src/compiler/access-builder.h b/src/compiler/access-builder.h
index 7c51b0cb5e33605dde2faf9706e69f7699331fd0..0e9f53b50a25035d8c29016136b8fdff6cca829b 100644
--- a/src/compiler/access-builder.h
+++ b/src/compiler/access-builder.h
@@ -61,10 +61,19 @@ class AccessBuilder final : public AllStatic {
   // Provides access to String::length() field.
   static FieldAccess ForStringLength(Zone* zone);
 
+  // Provides access to GlobalObject::native_context() field.
+  static FieldAccess ForGlobalObjectNativeContext();
+
   // Provides access to JSValue::value() field.
   static FieldAccess ForValue();
 
-  // Provides access Context slots.
+  // Provides access to arguments objects fields.
+  static FieldAccess ForArgumentsLength();
+
+  // Provides access to FixedArray slots.
+  static FieldAccess ForFixedArraySlot(size_t index);
+
+  // Provides access to Context slots.
   static FieldAccess ForContextSlot(size_t index);
 
   // Provides access to PropertyCell::value() field.