syntax_data: {"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // FIXME (https://github.com/rust-lang/rust/issues/133459): do we want to change the JSON
context_before:         // These checks are not critical for correctness, but more like default guidelines.
context_after:         // target defaults so that they pass these checks?