syntax_data: {"ast_node_type":"other","tokens":[{"end":106,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // Use `'{erased}` as the output instead of `'erased` so that its more obviously distinct from
context_after:             // a `ReEarlyParam` named `'erased`. Technically that would print as `'erased/#IDX` so this is