syntax_data: {"ast_node_type":"other","tokens":[{"end":23,"kind":"keyword","start":0,"text":"debug!("}]}
source_snippet:                 debug!(
context_before:                 let r = tcx.type_of(field.did).instantiate(tcx, args);
context_after:                     "drop_tys_helper: Instantiate into {:?} with {:?} getting {:?}",