update lbmpy to 1.3.5

pybind11 @ 7c33cdc2

-Subproject commit f7b499615e14d70ab098a20deb0cdb3889998a1a
+Subproject commit 7c33cdc2d39c7b99a122579f53bc94c8eb3332ff

tests/field/codegen/Poisson.py

@@ -12,8 +12,8 @@ with CodeGeneration() as ctx:
 
     @ps.kernel
     def kernel_func():
-        src[0, 0] @= ((dy2 * (src[1, 0] + src[-1, 0]))
+        dst[0, 0] @= ((dy2 * (src[1, 0] + src[-1, 0]))
                       + (dx2 * (src[0, 1] + src[0, -1]))
                       - (rhs[0, 0] * dx2 * dy2)) / (2.0 * (dx2 + dy2))
 
-    generate_sweep(ctx, 'Poisson', kernel_func)
+    generate_sweep(ctx, 'Poisson', kernel_func, field_swaps=[(src, dst), ])

tests/gpu/codegen/CudaPoisson.py

@@ -12,8 +12,8 @@ with CodeGeneration() as ctx:
 
     @ps.kernel
     def kernel_func():
-        src[0, 0] @= ((dy**2 * (src[1, 0] + src[-1, 0]))
+        dst[0, 0] @= ((dy**2 * (src[1, 0] + src[-1, 0]))
                       + (dx**2 * (src[0, 1] + src[0, -1]))
                       - (rhs[0, 0] * dx**2 * dy**2)) / (2 * (dx**2 + dy**2))
 
-    generate_sweep(ctx, 'PoissonGPU', kernel_func, target=ps.Target.GPU)
+    generate_sweep(ctx, 'PoissonGPU', kernel_func, field_swaps=[(src, dst), ], target=ps.Target.GPU)