Change a few visibilities to work around a bug in g++ 3.4.2.

It looks like this version of g++ is confused by the local class generated
by the TEST_F macro and it can't tell that we're in a method that inherits
the class we want to access.

This bug causes the following kind of error:
../samples/../test/gtest_unittest.cc: In static member function `static void
<unnamed>::ExpectFatalFailureTest_CatchesFatalFaliure_Test::TestBody()::GTestExpectFatalFailureHelper::Execute()':
../samples/../test/gtest_unittest.cc:799: error: `static void
<unnamed>::ScopedFakeTestPartResultReporterTest::AddFailure(<unnamed>::ScopedFakeTestPartResultReporterTest::FailureMode)'
is protected
../samples/../test/gtest_unittest.cc:883: error: within this context
Signed-off-by: Benoit Sigoure <tsunanet@gmail.com>

test/gtest_output_test_.cc

@@ -808,7 +808,7 @@ INSTANTIATE_TYPED_TEST_CASE_P(My, ATypeParamDeathTest, NumericTypes);
 // Tests various failure conditions of
 // EXPECT_{,NON}FATAL_FAILURE{,_ON_ALL_THREADS}.
 class ExpectFailureTest : public testing::Test {
- protected:
+ public:  // Must be public and not protected due to a bug in g++ 3.4.2.
   enum FailureMode {
     FATAL_FAILURE,
     NONFATAL_FAILURE

test/gtest_unittest.cc

@@ -827,7 +827,7 @@ static void AddNonfatalFailure() {
 }
 
 class ScopedFakeTestPartResultReporterTest : public Test {
- protected:
+ public:  // Must be public and not protected due to a bug in g++ 3.4.2.
   enum FailureMode {
     FATAL_FAILURE,
     NONFATAL_FAILURE
@@ -2701,7 +2701,7 @@ INSTANTIATE_TYPED_TEST_CASE_P(My, DISABLED_TypedTestP, NumericTypes);
 // Tests that assertion macros evaluate their arguments exactly once.
 
 class SingleEvaluationTest : public Test {
- public:
+ public:  // Must be public and not protected due to a bug in g++ 3.4.2.
   // This helper function is needed by the FailedASSERT_STREQ test
   // below.  It's public to work around C++Builder's bug with scoping local
   // classes.