[test-api] Extract arraybufs and typed arrays

Extract tests related to array buffers and typed arrays to their own
.cc files.

R=mstarzinger@chromium.org

Change-Id: Ic80205d02b62db1565670ecf2bb4c0dbe52fab49
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1662301
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62219}

test/cctest/BUILD.gn

@@ -163,8 +163,10 @@ v8_source_set("cctest_sources") {
     "test-accessors.cc",
     "test-allocation.cc",
     "test-api-accessors.cc",
+    "test-api-array-buffer.cc",
     "test-api-interceptors.cc",
     "test-api-stack-traces.cc",
+    "test-api-typed-array.cc",
     "test-api.cc",
     "test-api.h",
     "test-array-list.cc",

test/cctest/test-api.h

@@ -42,4 +42,14 @@ static void CheckReturnValue(const T& t, i::Address callback) {
   }
 }
 
+template <typename T>
+static void CheckInternalFieldsAreZero(v8::Local<T> value) {
+  CHECK_EQ(T::kInternalFieldCount, value->InternalFieldCount());
+  for (int i = 0; i < value->InternalFieldCount(); i++) {
+    CHECK_EQ(0, value->GetInternalField(i)
+                    ->Int32Value(CcTest::isolate()->GetCurrentContext())
+                    .FromJust());
+  }
+}
+
 #endif  // V8_TEST_CCTEST_TEST_API_H_