Make CUDA a language (not only a dialect )

pystencils/backends/cuda_backend.py

@@ -58,6 +58,7 @@ class CudaBackend(CBackend):
 
 
 class CudaSympyPrinter(CustomSympyPrinter):
+    language = "CUDA"
 
     def __init__(self):
         super(CudaSympyPrinter, self).__init__()

pystencils_tests/test_cuda_known_functions.py

@@ -55,7 +55,7 @@ def test_cuda_unknown():
     ast = pystencils.create_kernel(assignments, 'gpu')
     code = str(pystencils.show_code(ast))
     print(code)
-    assert "Not supported" in code
+    assert "Not supported in CUDA" in code
 
 
 def main():