[cleanup] Refactor wasm to use default members.

Fixing clang-tidy warning.

Bug: v8:8015
Change-Id: Ib3b6bdeb404ed6fe9c69107b4683a99c96dd8352
Reviewed-on: https://chromium-review.googlesource.com/1224053Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Florian Sattler <sattlerf@google.com>
Cr-Commit-Position: refs/heads/master@{#55866}

src/wasm/decoder.h

@@ -56,7 +56,7 @@ class Decoder {
     DCHECK_EQ(static_cast<uint32_t>(end - start), end - start);
   }
 
-  virtual ~Decoder() {}
+  virtual ~Decoder() = default;
 
   inline bool validate_size(const byte* pc, uint32_t length, const char* msg) {
     DCHECK_LE(start_, pc);

src/wasm/function-compiler.cc

@@ -69,7 +69,7 @@ WasmCompilationUnit::WasmCompilationUnit(WasmEngine* wasm_engine,
 
 // Declared here such that {LiftoffCompilationUnit} and
 // {TurbofanWasmCompilationUnit} can be opaque in the header file.
-WasmCompilationUnit::~WasmCompilationUnit() {}
+WasmCompilationUnit::~WasmCompilationUnit() = default;
 
 void WasmCompilationUnit::ExecuteCompilation(WasmFeatures* detected) {
   auto size_histogram = SELECT_WASM_COUNTER(counters_, env_->module->origin,

src/wasm/module-compiler.cc

@@ -2262,7 +2262,7 @@ void AsyncCompileJob::AsyncCompileSucceeded(Handle<WasmModuleObject> result) {
 // task) and schedule the next step(s), if any.
 class AsyncCompileJob::CompileStep {
  public:
-  virtual ~CompileStep() {}
+  virtual ~CompileStep() = default;
 
   void Run(bool on_foreground) {
     if (on_foreground) {

src/wasm/wasm-engine.h

@@ -30,14 +30,14 @@ class V8_EXPORT_PRIVATE CompilationResultResolver {
  public:
   virtual void OnCompilationSucceeded(Handle<WasmModuleObject> result) = 0;
   virtual void OnCompilationFailed(Handle<Object> error_reason) = 0;
-  virtual ~CompilationResultResolver() {}
+  virtual ~CompilationResultResolver() = default;
 };
 
 class V8_EXPORT_PRIVATE InstantiationResultResolver {
  public:
   virtual void OnInstantiationSucceeded(Handle<WasmInstanceObject> result) = 0;
   virtual void OnInstantiationFailed(Handle<Object> error_reason) = 0;
-  virtual ~InstantiationResultResolver() {}
+  virtual ~InstantiationResultResolver() = default;
 };
 
 // The central data structure that represents an engine instance capable of

src/wasm/wasm-memory.h

@@ -19,7 +19,7 @@ namespace wasm {
 
 class WasmMemoryTracker {
  public:
-  WasmMemoryTracker() {}
+  WasmMemoryTracker() = default;
   ~WasmMemoryTracker();
 
   // ReserveAddressSpace attempts to increase the reserved address space counter

test/cctest/wasm/wasm-run-utils.cc

@@ -453,7 +453,7 @@ WasmFunctionCompiler::WasmFunctionCompiler(Zone* zone, FunctionSig* sig,
   function_ = builder_->GetFunctionAt(index);
 }
 
-WasmFunctionCompiler::~WasmFunctionCompiler() {}
+WasmFunctionCompiler::~WasmFunctionCompiler() = default;
 
 FunctionSig* WasmRunnerBase::CreateSig(MachineType return_type,
                                        Vector<MachineType> param_types) {

test/unittests/wasm/module-decoder-unittest.cc

@@ -2130,7 +2130,7 @@ TEST_F(WasmModuleVerifyTest, Regression684855) {
 
 class WasmInitExprDecodeTest : public TestWithZone {
  public:
-  WasmInitExprDecodeTest() {}
+  WasmInitExprDecodeTest() = default;
 
   WasmFeatures enabled_features_;