syntax_data: {"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:                     if adt_def.variant(variant_index).fields[name].safety.is_unsafe() {
context_before:                 if let ty::Adt(adt_def, _) = lhs.ty.kind() {
context_after:                         self.requires_unsafe(expr.span, UseOfUnsafeField);