syntax_data: {"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"CastTarget::prefixed(data.prefix,"}]}
source_snippet:                     CastTarget::prefixed(data.prefix, Uniform::new(Reg::i64(), rest_size))
context_before:                 arg.cast_to(
context_after:                         .with_attrs(data.arg_attribute.into()),