[cctest] Fix -Wshadow warnings

Bug: v8:12244,v8:12245
Change-Id: I98c3f5e4aeed2d2179c61d482999fb498c676639
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3273527Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77855}

test/cctest/test-swiss-name-dictionary-shared-tests.h

@@ -411,9 +411,9 @@ struct SharedSwissTableTests {
       for (int index : boundary_indices) {
         std::string key = "k" + std::to_string(index);
         std::string value = "v" + std::to_string(index);
-        PropertyDetails details = distinct_property_details.at(count++);
+        PropertyDetails detail = distinct_property_details.at(count++);
         s.CheckDataAtKey(Key{key, FakeH1{index + kBigModulus}},
-                         InternalIndex(index), value, details);
+                         InternalIndex(index), value, detail);
       }
     });
   }