syntax_data: {"ast_node_type":"other","tokens":[{"end":43,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:         if self.infcx.next_trait_solver() {
context_before:     ) -> SelectionResult<'tcx, Selection<'tcx>> {
context_after:             return self.infcx.select_in_new_trait_solver(obligation);