syntax_data: {"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"ClauseWithSupertraitSpan"}]}
source_snippet:         ClauseWithSupertraitSpan { clause, supertrait_span: span }
context_before:     pub fn new(clause: I::Clause, span: I::Span) -> Self {
context_after:     }