Fixed variables that could be declared 'const'

Author: kimvaleen

googletest/include/gtest/gtest.h

@@ -2102,7 +2102,7 @@ class GTEST_API_ ScopedTrace {
 // Therefore, a SCOPED_TRACE() would (correctly) only affect the
 // assertions in its own thread.
 #define SCOPED_TRACE(message)                                         \
-  ::testing::ScopedTrace GTEST_CONCAT_TOKEN_(gtest_trace_, __LINE__)( \
+  const ::testing::ScopedTrace GTEST_CONCAT_TOKEN_(gtest_trace_, __LINE__)( \
       __FILE__, __LINE__, (message))
 
 // Compile-time assertion for type equality.

googletest/include/gtest/internal/gtest-internal.h

@@ -1500,7 +1500,7 @@ class NeverThrown {
 #define GTEST_TEST_NO_FATAL_FAILURE_(statement, fail)                          \
   GTEST_AMBIGUOUS_ELSE_BLOCKER_                                                \
   if (::testing::internal::AlwaysTrue()) {                                     \
-    ::testing::internal::HasNewFatalFailureHelper gtest_fatal_failure_checker; \
+    const ::testing::internal::HasNewFatalFailureHelper gtest_fatal_failure_checker; \
     GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement);                 \
     if (gtest_fatal_failure_checker.has_new_fatal_failure()) {                 \
       goto GTEST_CONCAT_TOKEN_(gtest_label_testnofatal_, __LINE__);            \