syntax_data: {"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // not to add such values here.
context_before:                 // have already been sorted into the failure arm, so we must take care
context_after:                 let is_covering_range = |test_case: &TestCase<'tcx>| {