syntax_data: {"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // so it's fine to drop their scope eagerly.
context_before:             // cyclic goals. We don't care about goals which are not on the current stack
context_after:             self.lookup_global_cache_untracked(cx, input, step_kind_from_parent, available_depth)