syntax_data: {"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // in case we're in the first fixpoint iteration for this goal.
context_before:         // Finally we can return either the provisional response or the initial response
context_after:         let path_kind = Self::cycle_path_kind(&self.stack, step_kind_from_parent, head);