message: Make TryDlopenCUDALibraries use the cached SO loaders
  This reduces the amount of logspam in OSS tests.
diff: @@ -21,14 +21,16 @@ namespace internal {
  namespace DsoLoader {
  port::Status TryDlopenCUDALibraries() {
  - auto cudart_status = GetCudaRuntimeDsoHandle();
  - auto cublas_status = GetCublasDsoHandle();
  - auto cublaslt_status = GetCublasLtDsoHandle();
  - auto cufft_status = GetCufftDsoHandle();
  - auto curand_status = GetCurandDsoHandle();
  - auto cusolver_status = GetCusolverDsoHandle();
  - auto cusparse_status = GetCusparseDsoHandle();
  - auto cudnn_status = GetCudnnDsoHandle();
  + namespace CachedLoader = ::stream_executor::internal::CachedDsoLoader;
  + auto cudart_status = CachedLoader::GetCudaRuntimeDsoHandle();
  + auto cublas_status = CachedLoader::GetCublasDsoHandle();
  + auto cublaslt_status = CachedLoader::GetCublasLtDsoHandle();
  + auto cufft_status = CachedLoader::GetCufftDsoHandle();
  + auto curand_status = CachedLoader::GetCurandDsoHandle();
  + auto cusolver_status = CachedLoader::GetCusolverDsoHandle();
  + auto cusparse_status = CachedLoader::GetCusparseDsoHandle();
  + auto cudnn_status = CachedLoader::GetCudnnDsoHandle();
  +
  if (!cudart_status.status().ok() || !cublas_status.status().ok() ||
  !cufft_status.status().ok() || !curand_status.status().ok() ||
  !cusolver_status.status().ok() || !cusparse_status.status().ok() ||
  