Arguments to GPU Kernel Not Correctly Detected

[philip-paul-mueller]

This error happens in conjunction with CopyToMap.
The transformation is called by the code generator, to remove some Memlets and turn them into a Map.
However, in some cases I get the errors that some symbols are not defined.

I traced the error back to the function that computes the arguments of a kernel.
I recently fixed a related bug, but it seems that there is more.