Fixes warnings when built by GCC with -Wswitch-default. Original patch by Zhixu Liu (zhixu.liu@gmail.com).

include/gtest/internal/gtest-death-test-internal.h

@@ -176,6 +176,8 @@ GTEST_API_ bool ExitedUnsuccessfully(int exit_status);
           gtest_dt->Abort(::testing::internal::DeathTest::TEST_DID_NOT_DIE); \
           break; \
         } \
+        default: \
+          break; \
       } \
     } \
   } else \

include/gtest/internal/gtest-port.h

@@ -535,7 +535,7 @@
 #ifdef __INTEL_COMPILER
 #define GTEST_AMBIGUOUS_ELSE_BLOCKER_
 #else
-#define GTEST_AMBIGUOUS_ELSE_BLOCKER_ switch (0) case 0:  // NOLINT
+#define GTEST_AMBIGUOUS_ELSE_BLOCKER_ switch (0) case 0: default:  // NOLINT
 #endif
 
 // Use this annotation at the end of a struct/class definition to