codeql/python/old-change-notes/2021-04-20-stepsummary-localsourcenode.md

lgtm,codescanning

• The predicates StepSummary::step and TypeTracker::step in TypeTracker.qll have been changed to use the more restrictive type LocalSourceNode for their second argument. For cases where stepping between non-LocalSourceNodes is required, the StepSummary::smallstep predicate may be used instead.
• The methods Node::track and Node::backtrack have been moved to the class LocalSourceNode. If the old behavior is required, one can use LocalSourceNode::flowsTo to add back the missing flow.