syntax_data: {"ast_node_type":"other","tokens":[{"end":10,"kind":"keyword","start":0,"text":"cx:"}]}
source_snippet:     cx: I,
context_before: pub fn elaborate_outlives_assumptions<I: Interner>(
context_after:     assumptions: impl IntoIterator<Item = ty::OutlivesPredicate<I, I::GenericArg>>,