[wasm] Correctly handle the result of WasmModule::Instantiate in the wasm-module-runner

test/common/wasm/wasm-module-runner.cc

 // Copyright 2016 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 "test/common/wasm/wasm-module-runner.h"
 
 #include "src/handles.h"
 #include "src/isolate.h"
 #include "src/objects.h"
 #include "src/property-descriptor.h"
@@ skipping 48 matching lines @@
   }
 
   if (thrower->error()) return Handle<JSObject>::null();
 
   // Although we decoded the module for some pre-validation, run the bytes
   // again through the normal pipeline.
   MaybeHandle<JSObject> module_object = CreateModuleObjectFromBytes(
       isolate, module->module_start, module->module_end, thrower,
       ModuleOrigin::kWasmOrigin);
   if (module_object.is_null()) return Handle<JSObject>::null();
-  return WasmModule::Instantiate(isolate, module_object.ToHandleChecked(),
-                                 Handle<JSReceiver>::null(),
-                                 Handle<JSArrayBuffer>::null())
-      .ToHandleChecked();
+  MaybeHandle<JSObject> maybe_instance = WasmModule::Instantiate(
+      isolate, module_object.ToHandleChecked(), Handle<JSReceiver>::null(),
+      Handle<JSArrayBuffer>::null());
+  Handle<JSObject> instance;
+  if (!maybe_instance.ToHandle(&instance)) {
+    return Handle<JSObject>::null();
+  }
+  return instance;
 }
 
 int32_t CompileAndRunWasmModule(Isolate* isolate, const byte* module_start,
                                 const byte* module_end, ModuleOrigin origin) {
   HandleScope scope(isolate);
   Zone zone(isolate->allocator());
 
   ErrorThrower thrower(isolate, "CompileAndRunWasmModule");
   std::unique_ptr<const WasmModule> module(DecodeWasmModuleForTesting(
       isolate, &zone, &thrower, module_start, module_end, origin));
@@ skipping 120 matching lines @@
 void SetupIsolateForWasmModule(Isolate* isolate) {
   WasmJs::InstallWasmMapsIfNeeded(isolate, isolate->native_context());
   WasmJs::InstallWasmModuleSymbolIfNeeded(isolate, isolate->global_object(),
                                           isolate->native_context());
 }
 
 }  // namespace testing
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8