syntax_data: {"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"for"}]}
source_snippet:     for level in [lint::Allow, lint::Warn, lint::ForceWarn, lint::Deny, lint::Forbid] {
context_after:         for (arg_pos, lint_name) in matches.opt_strs_pos(level.as_str()) {