syntax_data: {"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"layout.prune(&|d|"}]}
source_snippet:                 layout.prune(&|d| matches!(d, Def::HasSafetyInvariants)),
context_before:             assert_eq!(
context_after:                 Tree::byte(0x00).then(Tree::byte(0x01))