[gcmole] Handlify test-api.cc

Bug: v8:9994
Change-Id: I662182a252c2aab053f6c821bf281f613316700a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2207143
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Auto-Submit: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67869}

test/cctest/test-api.cc

@@ -14622,10 +14622,10 @@ THREADED_TEST(MorphCompositeStringTest) {
     CHECK(lhs->IsOneByte());
     CHECK(rhs->IsOneByte());
 
-    i::String ilhs = *v8::Utils::OpenHandle(*lhs);
-    i::String irhs = *v8::Utils::OpenHandle(*rhs);
-    MorphAString(ilhs, &one_byte_resource, &uc16_resource);
-    MorphAString(irhs, &one_byte_resource, &uc16_resource);
+    i::Handle<i::String> ilhs = v8::Utils::OpenHandle(*lhs);
+    i::Handle<i::String> irhs = v8::Utils::OpenHandle(*rhs);
+    MorphAString(*ilhs, &one_byte_resource, &uc16_resource);
+    MorphAString(*irhs, &one_byte_resource, &uc16_resource);
 
     // This should UTF-8 without flattening, since everything is ASCII.
     Local<String> cons =
@@ -14670,14 +14670,14 @@ THREADED_TEST(MorphCompositeStringTest) {
               .FromJust());
 
     // This avoids the GC from trying to free a stack allocated resource.
-    if (ilhs.IsExternalOneByteString())
-      i::ExternalOneByteString::cast(ilhs).SetResource(i_isolate, nullptr);
+    if (ilhs->IsExternalOneByteString())
+      i::ExternalOneByteString::cast(*ilhs).SetResource(i_isolate, nullptr);
     else
-      i::ExternalTwoByteString::cast(ilhs).SetResource(i_isolate, nullptr);
-    if (irhs.IsExternalOneByteString())
-      i::ExternalOneByteString::cast(irhs).SetResource(i_isolate, nullptr);
+      i::ExternalTwoByteString::cast(*ilhs).SetResource(i_isolate, nullptr);
+    if (irhs->IsExternalOneByteString())
+      i::ExternalOneByteString::cast(*irhs).SetResource(i_isolate, nullptr);
     else
-      i::ExternalTwoByteString::cast(irhs).SetResource(i_isolate, nullptr);
+      i::ExternalTwoByteString::cast(*irhs).SetResource(i_isolate, nullptr);
   }
   i::DeleteArray(two_byte_string);
 }