[wasm] Do not patch memory references in imported functions.

src/wasm/wasm-objects.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 "src/wasm/wasm-objects.h"
 #include "src/utils.h"
 
 #include "src/base/iterator.h"
 #include "src/debug/debug-interface.h"
 #include "src/wasm/module-decoder.h"
@@ skipping 719 matching lines @@
 }
 
 Handle<WasmCompiledModule> WasmCompiledModule::New(
     Isolate* isolate, Handle<WasmSharedModuleData> shared) {
   Handle<FixedArray> ret =
       isolate->factory()->NewFixedArray(PropertyIndices::Count, TENURED);
   // WasmCompiledModule::cast would fail since fields are not set yet.
   Handle<WasmCompiledModule> compiled_module(
       reinterpret_cast<WasmCompiledModule*>(*ret), isolate);
   compiled_module->InitId();
+  compiled_module->set_num_imported_functions(0);
   compiled_module->set_shared(shared);
   compiled_module->set_native_context(isolate->native_context());
   return compiled_module;
 }
 
 void WasmCompiledModule::InitId() {
 #if DEBUG
   static uint32_t instance_id_counter = 0;
   set(kID_instance_id, Smi::FromInt(instance_id_counter++));
   TRACE("New compiled module id: %d\n", instance_id());
@@ skipping 427 matching lines @@
       !array->get(kPreviousInstanceWrapper)->IsFixedArray())
     return false;
   return true;
 }
 
 void WasmInstanceWrapper::set_instance_object(Handle<JSObject> instance,
                                               Isolate* isolate) {
   Handle<WeakCell> cell = isolate->factory()->NewWeakCell(instance);
   set(kWrapperInstanceObject, *cell);
 }