[turbofan] Lower unmapped arguments objects in inline frame.

src/compiler/access-builder.cc

Index: src/compiler/access-builder.cc
diff --git a/src/compiler/access-builder.cc b/src/compiler/access-builder.cc
index 146279e94dbf3f092268de7feb045854899630d5..76e8b0688e644f843c4d181c1daed944b826bd3a 100644
--- a/src/compiler/access-builder.cc
+++ b/src/compiler/access-builder.cc
@@ -131,6 +131,14 @@ FieldAccess AccessBuilder::ForStringLength(Zone* zone) {
 
 
 // static
+FieldAccess AccessBuilder::ForGlobalObjectNativeContext() {
+  FieldAccess access = {kTaggedBase, GlobalObject::kNativeContextOffset,
+                        Handle<Name>(), Type::Any(), kMachAnyTagged};
+  return access;
+}
+
+
+// static
 FieldAccess AccessBuilder::ForValue() {
   FieldAccess access = {kTaggedBase, JSValue::kValueOffset, Handle<Name>(),
                         Type::Any(), kMachAnyTagged};
@@ -139,6 +147,25 @@ FieldAccess AccessBuilder::ForValue() {
 
 
 // static
+FieldAccess AccessBuilder::ForArgumentsLength() {
+  int offset =
+      JSObject::kHeaderSize + Heap::kArgumentsLengthIndex * kPointerSize;
+  FieldAccess access = {kTaggedBase, offset, Handle<Name>(), Type::Any(),
+                        kMachAnyTagged};
+  return access;
+}
+
+
+// static
+FieldAccess AccessBuilder::ForFixedArraySlot(size_t index) {
+  int offset = FixedArray::OffsetOfElementAt(static_cast<int>(index));
+  FieldAccess access = {kTaggedBase, offset, Handle<Name>(), Type::Any(),
+                        kMachAnyTagged};
+  return access;
+}
+
+
+// static
 FieldAccess AccessBuilder::ForContextSlot(size_t index) {
   int offset = Context::kHeaderSize + static_cast<int>(index) * kPointerSize;
   DCHECK_EQ(offset,