[wasm] Avoid js-typed-lowering optimization for wasm Memory objects

src/objects-inl.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // Review notes:
 //
 // - The use of macros in these inline functions may seem superfluous
 // but it is absolutely needed to make sure gcc generates optimal
 // code. gcc is not happy when attempting to inline too deep.
 //
@@ skipping 6950 matching lines @@
 }
 
 bool JSArrayBuffer::has_guard_region() {
   return HasGuardRegion::decode(bit_field());
 }
 
 void JSArrayBuffer::set_has_guard_region(bool value) {
   set_bit_field(HasGuardRegion::update(bit_field(), value));
 }
 
+bool JSArrayBuffer::is_wasm_buffer() {
+  return IsWasmBuffer::decode(bit_field());
+}
+
+void JSArrayBuffer::set_is_wasm_buffer(bool value) {
+  set_bit_field(IsWasmBuffer::update(bit_field(), value));
+}
+
 Object* JSArrayBufferView::byte_offset() const {
   if (WasNeutered()) return Smi::kZero;
   return Object::cast(READ_FIELD(this, kByteOffsetOffset));
 }
 
 
 void JSArrayBufferView::set_byte_offset(Object* value, WriteBarrierMode mode) {
   WRITE_FIELD(this, kByteOffsetOffset, value);
   CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kByteOffsetOffset, value, mode);
 }
@@ skipping 1258 matching lines @@
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 }  // namespace internal
 }  // namespace v8
 
 #include "src/objects/object-macros-undef.h"
 
 #endif  // V8_OBJECTS_INL_H_