copy all versions of libnghttp for tests

indra/llcorehttp/CMakeLists.txt

@@ -180,6 +180,10 @@ if (DARWIN)
     COMMAND ${CMAKE_COMMAND} -E copy ${AUTOBUILD_INSTALL_DIR}/lib/release/libexception_handler.dylib ${LL_TEST_DESTINATION_DIR}
     DEPENDS ${AUTOBUILD_INSTALL_DIR}/lib/release/libexception_handler.dylib
   )
+  add_custom_command(TARGET INTEGRATION_TEST_llcorehttp PRE_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy ${AUTOBUILD_INSTALL_DIR}/lib/release/libnghttp2*.dylib ${LL_TEST_DESTINATION_DIR}
+    DEPENDS ${AUTOBUILD_INSTALL_DIR}/lib/release/libnghttp2.dylib
+  )
   foreach(expat ${EXPAT_COPY})
     add_custom_command(TARGET INTEGRATION_TEST_llcorehttp PRE_BUILD
       COMMAND ${CMAKE_COMMAND} -E copy ${AUTOBUILD_INSTALL_DIR}/lib/release/${expat} ${LL_TEST_DESTINATION_DIR}