syntax_data: {"ast_node_type":"variable","tokens":[{"end":62,"kind":"keyword","start":0,"text":"&&"}]}
source_snippet:         && let sig = tcx.fn_sig(def_id).instantiate_identity()
context_before:         // avoid erroneous `Drop` impls from causing ICEs below
context_after:         && sig.inputs().skip_binder().len() == 1