test(storage): workaround MSVC limits (#8357)

I have a different version of MSVC compared to the version used in CI.
The tests do not compile without `/bigobj`, and presumably this affects
customers too.  We probably should enable that option for all tests.

google/cloud/storage/examples/CMakeLists.txt

@@ -81,6 +81,12 @@ if (BUILD_TESTING)
                     GTest::gtest)
         add_test(NAME ${target} COMMAND ${target})
         google_cloud_cpp_add_common_options(${target})
+        # With googletest it is relatively easy to exceed the default number of
+        # sections (~65,000) in a single .obj file. Add the /bigobj option to
+        # all the tests, even if it is not needed.
+        if (MSVC)
+            target_compile_options(${target} PRIVATE "/bigobj")
+        endif ()
     endforeach ()
 
     foreach (fname ${storage_examples})
@@ -95,6 +101,12 @@ if (BUILD_TESTING)
             ${target} PROPERTIES LABELS
                                  "integration-test;integration-test-emulator")
         google_cloud_cpp_add_common_options(${target})
+        # With googletest it is relatively easy to exceed the default number of
+        # sections (~65,000) in a single .obj file. Add the /bigobj option to
+        # all the tests, even if it is not needed.
+        if (MSVC)
+            target_compile_options(${target} PRIVATE "/bigobj")
+        endif ()
     endforeach ()
 
     # We just know that these tests need to be run against production.
@@ -107,5 +119,11 @@ if (BUILD_TESTING)
         set_tests_properties(
             ${target} PROPERTIES LABELS
                                  "integration-test;integration-test-production")
+        # With googletest it is relatively easy to exceed the default number of
+        # sections (~65,000) in a single .obj file. Add the /bigobj option to
+        # all the tests, even if it is not needed.
+        if (MSVC)
+            target_compile_options(${target} PRIVATE "/bigobj")
+        endif ()
     endforeach ()
 endif ()