find a bug that bilinear must have bias

test/modules/test_other_modules.py

@@ -27,4 +27,4 @@ class TestBiLinear(unittest.TestCase):
         x_right = torch.randn((7, 10, 20, 5))
         y = bl(x_left, x_right)
         print(bl)
-        bl2 = BiLinear(n_left=15, n_right=15, n_out=10, bias=False)
+        bl2 = BiLinear(n_left=15, n_right=15, n_out=10, bias=True)