syntax_data: {"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// `RePlaceholder`. When checking an item's body, `ReLateParam` is supposed
context_before: /// There are two kinds of placeholder regions in rustc: `ReLateParam` and
context_after: /// to be used. These also support explicit bounds: both the internally-stored