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-pp-string_test.cc

@@ -30,11 +30,10 @@
 // Google Mock - a framework for writing C++ mock classes.
 //
 // This file tests the internal preprocessor macro library.
-#include "gmock/internal/gmock-pp.h"
-
 #include <string>
 
 #include "gmock/gmock.h"
+#include "gmock/internal/gmock-pp.h"
 
 namespace testing {
 namespace {