syntax_data: {"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"self.candidate_is_applicable(step_kind_from_parent,"}]}
source_snippet:                     self.candidate_is_applicable(step_kind_from_parent, nested_goals)
context_before:                 .get(cx, input, available_depth, |nested_goals| {
context_after:                 })?;