syntax_data: {"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"!has_sized_bound"}]}
source_snippet:             !has_sized_bound && !has_meta_sized_bound && !has_negative_sized_bound;
context_before:         let has_pointee_sized_bound =
context_after:         if add_sized || add_maybe_sized {