ISPC/CUDA targets: call superclass constructor

loopy/target/cuda.py

@@ -169,6 +169,8 @@ class CudaTarget(CTarget):
         """
         self.extern_c = extern_c
 
+        super(CudaTarget, self).__init__()
+
     # {{{ library
 
     def function_manglers(self):

loopy/target/ispc.py

@@ -62,6 +62,8 @@ class ISPCTarget(CTarget):
         """
         self.occa_mode = occa_mode
 
+        super(ISPCTarget, self).__init__()
+
     # {{{ top-level codegen
 
     def generate_code(self, kernel, codegen_state, impl_arg_info):