syntax_data: {"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"self.add_wf_preds_for_pat_ty(base_ty,"}]}
source_snippet:                 self.add_wf_preds_for_pat_ty(base_ty, pat);
context_before:                 self.require_sized(base_ty, ObligationCauseCode::Misc);
context_after:             }