{"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"//"}]}
    // getting any bigger, if we can avoid it. When we have more than N CGUs
    // which means we don't want codegen_units[0..N] (the already big ones)
    // then at least one of the biggest N will have to grow. codegen_units[N-1]