syntax_data: {"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// See tests/ui/impl-trait/non-defining-use/as-projection-term.rs.
context_before:     /// non-universal defining uses of opaque types, which is a breaking change.
context_after:     Borrowck { defining_opaque_types: I::LocalDefIds },