{"ast_node_type":"other","tokens":[{"end":100,"kind":"keyword","start":0,"text":"//"}]}
        // expect to see MIR like that. To verify this, a test was run against `[rust-lang/regex]` -
        // Reaching a fixed point could in theory take up to `min(l, s)` rounds - however, we do not
        // the average MIR body saw 1.32 full iterations of this loop. The most that was hit were 30