syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"arg.cast_to(Reg"}]}
source_snippet:             arg.cast_to(Reg { kind: RegKind::Integer, size: arg.layout.size });
context_before:         if arg.layout.size.bits() <= target.pointer_width.into() {
context_after:         } else {