Fixes to tests to avoid conflicting names or main.

Author: pleroy

test/args_product_test.cc

@@ -74,4 +74,6 @@ BENCHMARK_REGISTER_F(ArgsProductFixture, Empty)
     ->ArgsProduct({{1, 2}, {15}, {3, 7, 10}, {8, 9}})
     ->Args({4, 5, 6, 11});
 
+#if !defined(_MSC_VER)
 BENCHMARK_MAIN();
+#endif

test/internal_threading_test.cc

@@ -181,4 +181,6 @@ BENCHMARK(BM_MainThreadAndWorkerThread)
 // ---------------------------- TEST CASES END ----------------------------- //
 // ========================================================================= //
 
+#if !defined(_MSC_VER)
 int main(int argc, char* argv[]) { RunOutputTests(argc, argv); }
+#endif

test/link_main_test.cc

@@ -1,8 +1,8 @@
 #include "benchmark/benchmark.h"
 
-void BM_empty(benchmark::State& state) {
+void BM_empty2(benchmark::State& state) {
   for (auto _ : state) {
     benchmark::DoNotOptimize(state.iterations());
   }
 }
-BENCHMARK(BM_empty);
+BENCHMARK(BM_empty2);