syntax_data: {"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // this code runs on pre-cleanup MIR, and `ignore_for_traits = false` is the safer
context_before:         // the information. This is alright, since `ignore_for_traits` is only relevant when
context_after:         // default.