[wasm] Skip serialization of breakpoints and certion stubs

src/snapshot/code-serializer.h

 // 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.
 
 #ifndef V8_SNAPSHOT_CODE_SERIALIZER_H_
 #define V8_SNAPSHOT_CODE_SERIALIZER_H_
 
 #include "src/parsing/preparse-data.h"
 #include "src/snapshot/serializer.h"
 
@@ skipping 46 matching lines @@
 
 class WasmCompiledModuleSerializer : public CodeSerializer {
  public:
   static std::unique_ptr<ScriptData> SerializeWasmModule(
       Isolate* isolate, Handle<FixedArray> compiled_module);
   static MaybeHandle<FixedArray> DeserializeWasmModule(
       Isolate* isolate, ScriptData* data, Vector<const byte> wire_bytes);
 
  protected:
   void SerializeCodeObject(Code* code_object, HowToCode how_to_code,
-                           WhereToPoint where_to_point) override {
-    Code::Kind kind = code_object->kind();
-    if (kind == Code::WASM_FUNCTION || kind == Code::WASM_TO_JS_FUNCTION ||
-        kind == Code::JS_TO_WASM_FUNCTION) {
-      SerializeGeneric(code_object, how_to_code, where_to_point);
-    } else {
-      UNREACHABLE();
-    }
-  }
-
-  bool ElideObject(Object* obj) override {
-    return obj->IsWeakCell() || obj->IsForeign();
-  };
+                           WhereToPoint where_to_point) override;
+  bool ElideObject(Object* obj) override;
 
  private:
-  WasmCompiledModuleSerializer(Isolate* isolate, uint32_t source_hash)
-      : CodeSerializer(isolate, source_hash) {}
+  WasmCompiledModuleSerializer(Isolate* isolate, uint32_t source_hash,
+                               Handle<Context> native_context,
+                               Handle<SeqOneByteString> module_bytes);
   DISALLOW_COPY_AND_ASSIGN(WasmCompiledModuleSerializer);
 };
 
 // Wrapper around ScriptData to provide code-serializer-specific functionality.
 class SerializedCodeData : public SerializedData {
  public:
   enum SanityCheckResult {
     CHECK_SUCCESS = 0,
     MAGIC_NUMBER_MISMATCH = 1,
     VERSION_MISMATCH = 2,
@@ skipping 57 matching lines @@
   }
 
   SanityCheckResult SanityCheck(Isolate* isolate,
                                 uint32_t expected_source_hash) const;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_SNAPSHOT_CODE_SERIALIZER_H_