Fix build error due to conflicting changes.

src/wasm/wasm-module.cc

 // Copyright 2015 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.
 
 #include <memory>
 
 #include "src/base/atomic-utils.h"
 #include "src/code-stubs.h"
 
 #include "src/macro-assembler.h"
@@ skipping 1874 matching lines @@
 #define WCM_CHECK_OBJECT_OR_WEAK(TYPE, NAME)         \
   if (!arr->get(kID_##NAME)->IsUndefined(isolate) && \
       !arr->get(kID_##NAME)->Is##TYPE())             \
     return false;
 #define WCM_CHECK_OBJECT(TYPE, NAME) WCM_CHECK_OBJECT_OR_WEAK(TYPE, NAME)
 #define WCM_CHECK_WEAK_LINK(TYPE, NAME) WCM_CHECK_OBJECT_OR_WEAK(WeakCell, NAME)
 #define WCM_CHECK(KIND, TYPE, NAME) WCM_CHECK_##KIND(TYPE, NAME)
   WCM_PROPERTY_TABLE(WCM_CHECK)
 #undef WCM_CHECK
 
-  WasmCompiledModule* compiled_module =
-      reinterpret_cast<WasmCompiledModule*>(obj);
-  if (!compiled_module->has_module_bytes()) return false;
-  SeqOneByteString* module_bytes = compiled_module->ptr_to_module_bytes();
-  if (module_bytes->length() < 4) return false;
-  if (memcmp(module_bytes->GetChars(), "\0asm", 4)) return false;
-
   // All checks passed.
   return true;
 }
 
 void WasmCompiledModule::PrintInstancesChain() {
 #if DEBUG
   if (!FLAG_trace_wasm_instances) return;
   for (WasmCompiledModule* current = this; current != nullptr;) {
     PrintF("->%d", current->instance_id());
     if (current->ptr_to_weak_next_instance() == nullptr) break;
@@ skipping 328 matching lines @@
   WasmCompiledModule* compiled_module =
       WasmCompiledModule::cast(instance->GetInternalField(kWasmCompiledModule));
   CHECK(compiled_module->has_weak_module_object());
   CHECK(compiled_module->ptr_to_weak_module_object()->cleared());
 }
 
 }  // namespace testing
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8