syntax_data: {"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"lint_level_roots_cache:"}]}
source_snippet:             lint_level_roots_cache: GrowableBitSet::new_empty(),
context_before:             var_debug_info: vec![],
context_after:             coverage_info: coverageinfo::CoverageInfoBuilder::new_if_enabled(tcx, def),