syntax_data: {"ast_node_type":"other","tokens":[{"end":14,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// important.
context_before: /// This is the `Body` that will be used by the `MockAnalysis` below. The shape of its CFG is not
context_after: fn mock_body<'tcx>() -> mir::Body<'tcx> {