Add torch.multinomial for CUDA
diff --git a/torch/csrc/generic/methods/TensorRandom.cwrap b/torch/csrc/generic/methods/TensorRandom.cwrap
index d45acf0..4bd69ae 100644
--- a/torch/csrc/generic/methods/TensorRandom.cwrap
+++ b/torch/csrc/generic/methods/TensorRandom.cwrap
@@ -171,6 +171,7 @@
 [[
   name: multinomial
   defined_if: CUDA_FLOAT || CUDA_DOUBLE || CUDA_HALF
+  with_stateless: True
   return: argument 0
   arguments:
     - arg: THTensor* result