nogil check for usage of new temps

[dagss]

In ModuleNode?.py, around line 1350, there used to be a check for whether Python temporaries were used in functions declared nogil. This was not implemented for the new temp system (so likely a bug in 0.11 here).

I haven't checked whether this is a problem since the last gil refactoring. At any rate the GIL check should probably be moved to the new gil checker transform instead.

I'm also thinking that perhaps checking for the type of the temps is a bit "indirect" way of doing things, and perhaps it is more robust to simply filter the allowed operations in a function.

[dagss]

See also #205. And, to some degree, #210.

[dagss]

It is Nodes.py:1396

[scoder]

Is this really a problem? What operations can there be that allocate a Python temp but do not require the GIL themselves?

[dagss]

Basically I was just assuming that the check existed there for a reason (and decided to make a note rather than forget about it).

But it may be that we should just close this as invalid and count on any such strange cases to show up sometime and be handled in a more proper way.

[dagss]

See Stefan's comment.