Running clang-format over all of GoogleTest

A few tests are examining code locations and looking af the resulting line
numbers to verify that GoogleTest shows those to users correctly. Some of those
locations change when clang-format is run. For those locations, I've wrapped
portions in:
// clang-format off
...
// clang-format on

There may be other locations that are currently not tickled by running
clang-format.

PiperOrigin-RevId: 434844712
Change-Id: I3a9f0a6f39eff741c576b6de389bef9b1d11139d

googlemock/test/gmock_ex_test.cc

@@ -27,7 +27,6 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-
 // Tests Google Mock's functionality that depends on exceptions.
 
 #include "gmock/gmock.h"
@@ -75,6 +74,5 @@ TEST(DefaultValueTest, ThrowsRuntimeErrorWhenNoDefaultValue) {
   }
 }
 
-
 }  // unnamed namespace
 #endif