syntax_data: {"ast_node_type":"variable","tokens":[{"end":79,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:         let add_sized = has_sized_bound && (first || has_negative_sized_bound);
context_before:         let using_sized_hierarchy = self.tcx().features().sized_hierarchy();
context_after:         let add_maybe_sized =