syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // [Unless `-Zverbose-internals` is used, e.g. in the output of
context_before:                 // and should have no effect on any compiler output.
context_after:                 // `tests/ui/nll/ty-outlives/impl-trait-captures.rs`, for