gtest.h: add IWYU export pragmas

PiperOrigin-RevId: 607136416
Change-Id: Ia29dd3156d4d455194745e58501eaee9d77045a1
diff --git a/googletest/include/gtest/gtest.h b/googletest/include/gtest/gtest.h
index 15d0539..de8ecea 100644
--- a/googletest/include/gtest/gtest.h
+++ b/googletest/include/gtest/gtest.h
@@ -60,16 +60,16 @@
 #include <type_traits>
 #include <vector>
 
-#include "gtest/gtest-assertion-result.h"
-#include "gtest/gtest-death-test.h"
-#include "gtest/gtest-matchers.h"
-#include "gtest/gtest-message.h"
-#include "gtest/gtest-param-test.h"
-#include "gtest/gtest-printers.h"
-#include "gtest/gtest-test-part.h"
-#include "gtest/gtest-typed-test.h"
-#include "gtest/gtest_pred_impl.h"
-#include "gtest/gtest_prod.h"
+#include "gtest/gtest-assertion-result.h"  // IWYU pragma: export
+#include "gtest/gtest-death-test.h"  // IWYU pragma: export
+#include "gtest/gtest-matchers.h"  // IWYU pragma: export
+#include "gtest/gtest-message.h"  // IWYU pragma: export
+#include "gtest/gtest-param-test.h"  // IWYU pragma: export
+#include "gtest/gtest-printers.h"  // IWYU pragma: export
+#include "gtest/gtest-test-part.h"  // IWYU pragma: export
+#include "gtest/gtest-typed-test.h"  // IWYU pragma: export
+#include "gtest/gtest_pred_impl.h"  // IWYU pragma: export
+#include "gtest/gtest_prod.h"  // IWYU pragma: export
 #include "gtest/internal/gtest-internal.h"
 #include "gtest/internal/gtest-string.h"