syntax_data: {"ast_node_type":"variable","tokens":[{"end":98,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:         let layout = cx.layout_of(ty).map_err(|err| &*tcx.arena.alloc(FnAbiError::Layout(*err)))?;
context_after:         let layout = if is_virtual_call && arg_idx == Some(0) {