Merge #8808: Do not shadow variables (gcc set)

ad1ae7a Check and enable -Wshadow by default. (Pavel Janík)
9de90bb Do not shadow variables (gcc set) (Pavel Janík)

Tree-SHA512: 9517feb423dc8ddd63896016b25324673bfbe0bffa97f22996f59d7a3fcbdc2ebf2e43ac02bc067546f54e293e9b2f2514be145f867321e9031f895c063d9fb8

src/bench/lockedpool.cpp

@@ -13,7 +13,7 @@
 #define BITER 5000
 #define MSIZE 2048
 
-static void LockedPool(benchmark::State& state)
+static void BenchLockedPool(benchmark::State& state)
 {
     void *synth_base = reinterpret_cast<void*>(0x08000000);
     const size_t synth_size = 1024*1024;
@@ -43,5 +43,5 @@ static void LockedPool(benchmark::State& state)
     addr.clear();
 }
 
-BENCHMARK(LockedPool);
+BENCHMARK(BenchLockedPool);