syntax_data: {"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // conservative way -- we can prove that `T: 'a` (more generally,
context_before:     // include a bound like `type Foo: 'static`, or -- in the most
context_after:     // that all components in the projection outlive `'a`). This code