Revert "Add tests for serialization of v8::CFunction"

This reverts commit 5dd16ca.

Reason for revert: MSAN complains about an uninitialized value, see https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/41150/overview

Original change's description:
> Add tests for serialization of v8::CFunction
>
> The tests are modeled after another patch that includes
> v8::CFunctions into Node.js's builtin snapshot.
>
> Refs: nodejs/node#40649
> Change-Id: I5a91682f7944ef06a0d3caf7333b09f974bcd64b
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3251138
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Maya Lekova <mslekova@chromium.org>
> Commit-Queue: Joyee Cheung <joyee@igalia.com>
> Cr-Commit-Position: refs/heads/main@{#77726}

Change-Id: I9ea32a84783c3f555ee40daebf7b7f6c74f75062
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3263892
Auto-Submit: Maya Lekova <mslekova@chromium.org>
Owners-Override: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#77729}

test/cctest/test-serialize.cc

@@ -29,7 +29,6 @@
 #include <sys/stat.h>
 
 #include "include/v8-extension.h"
-#include "include/v8-fast-api-calls.h"
 #include "include/v8-function.h"
 #include "include/v8-locker.h"
 #include "src/api/api-inl.h"
@@ -3103,160 +3102,6 @@ UNINITIALIZED_TEST(SnapshotCreatorShortExternalReferences) {
   FreeCurrentEmbeddedBlob();
 }
 
-class FastApiReceiver {
- public:
-  static void FastCallback(v8::Local<v8::Object> receiver) {
-    FastApiReceiver* receiver_ptr = static_cast<FastApiReceiver*>(
-        receiver->GetAlignedPointerFromInternalField(0));
-    CHECK_EQ(receiver_ptr, &instance);
-    receiver_ptr->result_ |= ApiCheckerResult::kFastCalled;
-  }
-
-  static void SlowCallback(const v8::FunctionCallbackInfo<v8::Value>& info) {
-    v8::Object* receiver = v8::Object::Cast(*info.Holder());
-    FastApiReceiver* receiver_ptr = static_cast<FastApiReceiver*>(
-        receiver->GetAlignedPointerFromInternalField(0));
-    CHECK_EQ(receiver_ptr, &instance);
-    receiver_ptr->result_ |= ApiCheckerResult::kSlowCalled;
-  }
-
-  static v8::StartupData SerializeInternalFields(v8::Local<v8::Object> holder,
-                                                 int index, void* data) {
-    void* ptr = holder->GetAlignedPointerFromInternalField(index);
-    if (ptr != &instance) {
-      return {nullptr, 0};
-    }
-    // Use a 1-byte payload to tell that it's a FastApiReceiver.
-    char* payload = new char[1];
-    return {payload, 1};
-  }
-
-  static void DeserializeInternalFields(v8::Local<v8::Object> holder, int index,
-                                        v8::StartupData payload, void* data) {
-    if (payload.raw_size == 0) {
-      holder->SetAlignedPointerInInternalField(index, nullptr);
-      return;
-    }
-
-    // Reset the state for testing.
-    instance.result_ = ApiCheckerResult::kNotCalled;
-    holder->SetAlignedPointerInInternalField(index, &instance);
-  }
-
-  bool DidCallFast() const { return (result_ & ApiCheckerResult::kFastCalled); }
-  bool DidCallSlow() const { return (result_ & ApiCheckerResult::kSlowCalled); }
-
-  static FastApiReceiver instance;
-  v8::CFunction c_function = v8::CFunction::Make(FastCallback);
-
- private:
-  ApiCheckerResultFlags result_ = ApiCheckerResult::kNotCalled;
-};
-
-FastApiReceiver FastApiReceiver::instance;
-// A CFunction comes with three external references: the fast calback,
-// the slow callback, and the type info.
-intptr_t c_function_external_references[] = {
-    reinterpret_cast<intptr_t>(FastApiReceiver::FastCallback),
-    reinterpret_cast<intptr_t>(FastApiReceiver::SlowCallback),
-    reinterpret_cast<intptr_t>(
-        FastApiReceiver::instance.c_function.GetTypeInfo()),
-    0};
-
-UNINITIALIZED_TEST(CFunction) {
-#ifndef V8_LITE_MODE
-  if (i::FLAG_jitless) return;
-  if (!i::FLAG_opt) return;
-
-  i::FLAG_turbo_fast_api_calls = true;
-  i::FLAG_allow_natives_syntax = true;
-  // Disable --always_opt, otherwise we haven't generated the necessary
-  // feedback to go down the "best optimization" path for the fast call.
-  // No optimization should be done before serialization, but after
-  // deserialization we need optimization to check the fast calls.
-  i::FLAG_always_opt = false;
-  i::FlagList::EnforceFlagImplications();
-  DisableEmbeddedBlobRefcounting();
-
-  v8::StartupData blob;
-  {
-    v8::SnapshotCreator creator(c_function_external_references);
-    v8::Isolate* isolate = creator.GetIsolate();
-    {
-      v8::HandleScope handle_scope(isolate);
-      v8::Local<v8::Context> context = v8::Context::New(isolate);
-      v8::Context::Scope context_scope(context);
-
-      v8::Local<v8::FunctionTemplate> callback = v8::FunctionTemplate::New(
-          isolate, FastApiReceiver::SlowCallback, v8::Local<v8::Value>(),
-          v8::Local<v8::Signature>(), 0, v8::ConstructorBehavior::kThrow,
-          v8::SideEffectType::kHasSideEffect,
-          &(FastApiReceiver::instance.c_function));
-
-      v8::Local<v8::ObjectTemplate> object_template =
-          v8::ObjectTemplate::New(isolate);
-      object_template->SetInternalFieldCount(1);
-      object_template->Set(isolate, "api_func", callback);
-
-      v8::Local<v8::Object> object =
-          object_template->NewInstance(context).ToLocalChecked();
-      object->SetAlignedPointerInInternalField(0, &(FastApiReceiver::instance));
-      CHECK(context->Global()
-                ->Set(context, v8_str("receiver"), object)
-                .FromJust());
-
-      CHECK(!FastApiReceiver::instance.DidCallFast());
-      CHECK(!FastApiReceiver::instance.DidCallSlow());
-
-      CompileRun("receiver.api_func();");
-      CHECK(FastApiReceiver::instance.DidCallSlow());
-
-      creator.SetDefaultContext(
-          context, v8::SerializeInternalFieldsCallback(
-                       FastApiReceiver::SerializeInternalFields, nullptr));
-    }
-    blob =
-        creator.CreateBlob(v8::SnapshotCreator::FunctionCodeHandling::kClear);
-  }
-
-  {
-    v8::Isolate::CreateParams params;
-    params.snapshot_blob = &blob;
-    params.array_buffer_allocator = CcTest::array_buffer_allocator();
-    params.external_references = c_function_external_references;
-
-    // Test-appropriate equivalent of v8::Isolate::New.
-    v8::Isolate* isolate = TestSerializer::NewIsolate(params);
-    {
-      v8::Isolate::Scope isolate_scope(isolate);
-      v8::HandleScope handle_scope(isolate);
-      v8::Local<v8::Context> context = v8::Context::New(
-          isolate, nullptr, v8::MaybeLocal<v8::ObjectTemplate>(),
-          v8::MaybeLocal<v8::Value>(),
-          v8::DeserializeInternalFieldsCallback(
-              FastApiReceiver::DeserializeInternalFields, nullptr));
-      v8::Context::Scope context_scope(context);
-
-      // Deserialize callback should reset the state of the instance.
-      CHECK(!FastApiReceiver::instance.DidCallFast());
-      CHECK(!FastApiReceiver::instance.DidCallSlow());
-      CompileRun(
-          "function foo(arg) {"
-          "  for (let i = 0; i < arg; ++i) { receiver.api_func(); }"
-          "}"
-          "%PrepareFunctionForOptimization(foo);"
-          "foo(42); foo(42);"
-          "%OptimizeFunctionOnNextCall(foo);"
-          "foo(42);");
-      CHECK(FastApiReceiver::instance.DidCallFast());
-    }
-    isolate->Dispose();
-  }
-  delete[] blob.data;
-  FreeCurrentEmbeddedBlob();
-#endif
-}
-
 v8::StartupData CreateSnapshotWithDefaultAndCustom() {
   v8::SnapshotCreator creator(original_external_references);
   v8::Isolate* isolate = creator.GetIsolate();