syntax_data: {"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"self.requires_unsafe(pat.pattern.span,"}]}
source_snippet:                             self.requires_unsafe(pat.pattern.span, UseOfUnsafeField);
context_before:                         if adt_def.non_enum_variant().fields[pat.field].safety.is_unsafe() {
context_after:                         }