syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// global cache and track them locally instead. A provisional cache entry
context_before:     /// still depend on goals higher-up in the stack. We don't move them to the
context_after:     /// is only valid until the result of one of its cycle heads changes.