Fill out some utility functions for non-open kwarg graphs

[lockshaw]

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[elliottslaughter]

@elliottslaughter reviewed 22 files and all commit messages, and made 1 comment.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on lockshaw).

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lib/utils/include/utils/graph/kwarg_dataflow_graph/algorithms/dataflow_graph_data_from_kwarg_dataflow_graph_data.h line 10 at r1 (raw file):

#include "utils/graph/dataflow_graph/algorithms/dataflow_graph_data.dtg.h"
#include "utils/graph/kwarg_dataflow_graph/algorithms/kwarg_dataflow_graph_data.dtg.h"
#include "utils/nonempty_unordered_set/nonempty_unordered_set.h"

You're removing this include but it looks like you actually do use it in the new code below.