The GTEST_ALLOW_UNINSTANTIATED_PARAMTERIZED_TEST macro was added to googletest
in commit 0b024bd9 on master. It has been used in an abseil-cpp release before
a googletest release.

--- a/absl/container/internal/unordered_map_modifiers_test.h
+++ b/absl/container/internal/unordered_map_modifiers_test.h
@@ -286,7 +286,9 @@ class UniquePtrModifiersTest : public ::testing::Test {
   }
 };

+#ifdef GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST
 GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(UniquePtrModifiersTest);
+#endif

 TYPED_TEST_SUITE_P(UniquePtrModifiersTest);

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