Python: filter local self loops #14644
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The logic for separating local flow into _import time_ and _runtime_ was duplicated a few times. Create a module for it instead, and add a good qldoc.
The logic for adding flow out of post-update-nodes was also duplicated, so I added a module for that also. The two modules are now only used together. I did not fuse them, though, as I think they may not be used together in the case of use-use-flow.
Co-authored-by: Taus <tausbn@github.com>
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Factor out use-use flow in order to do this. Also improve names and comments. I also wanted to change the types in `difinitionFlowStep`, but that broke the module instantiation.
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RasmusWL
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python/ql/lib/semmle/python/dataflow/new/internal/DataFlowPrivate.qll
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…ate.qll Co-authored-by: Rasmus Wriedt Larsen <rasmuswriedtlarsen@gmail.com>
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These should be filtered on use-use steps, so I have factored those out.
(If self loops appear on the other steps, we want the inconsistency check to tell us.)
Based on #14617 so should be rebased once that is merged.