syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                             //   `T: NonAutoTrait -> WF(T) -> T: NonAutoTrait`
context_before:                             // Okay, let's imagine we have two different stacks:
context_after:                             //   `WF(T) -> T: NonAutoTrait -> WF(T)`