syntax_data: {"ast_node_type":"other","tokens":[{"end":20,"kind":"keyword","start":0,"text":"AstTreeExpanded,"}]}
source_snippet:     AstTreeExpanded,
context_before:     /// `-Zunpretty=ast-tree,expanded`
context_after:     /// Options that print the HIR, i.e. `-Zunpretty=hir`