[wasm] Managed<T> ensures T's lifetime does not leak past Isolate's

src/wasm/wasm-module.h

 // 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.
 
 #ifndef V8_WASM_MODULE_H_
 #define V8_WASM_MODULE_H_
 
 #include <memory>
 
 #include "src/api.h"
 #include "src/debug/debug-interface.h"
 #include "src/globals.h"
 #include "src/handles.h"
+#include "src/managed.h"
 #include "src/parsing/preparse-data.h"
 
-#include "src/wasm/managed.h"
 #include "src/wasm/signature-map.h"
 #include "src/wasm/wasm-opcodes.h"
 
 namespace v8 {
 namespace internal {
 
 class WasmCompiledModule;
 class WasmDebugInfo;
 class WasmModuleObject;
 class WasmInstanceObject;
@@ skipping 422 matching lines @@
                             int instance_count);
 void ValidateModuleState(Isolate* isolate, Handle<WasmModuleObject> module_obj);
 void ValidateOrphanedInstance(Isolate* isolate,
                               Handle<WasmInstanceObject> instance);
 }  // namespace testing
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_MODULE_H_