syntax_data: {"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"PlaceBase::Upvar"}]}
source_snippet:             PlaceBase::Upvar { var_hir_id, closure_def_id: _ } => span_bug!(
context_before:             ),
context_after:                 cx.tcx.hir_span(var_hir_id.0),