syntax_data: {"ast_node_type":"import","tokens":[{"end":36,"kind":"keyword","start":0,"text":"use"}]}
source_snippet: use rustc_hir::lang_items::LangItem;
context_before: use rustc_data_structures::stack::ensure_sufficient_stack;
context_after: use rustc_infer::infer::{BoundRegionConversionTime, DefineOpaqueTypes, InferOk};