syntax_data: {"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"SelfArgVisitor::new(tcx,"}]}
source_snippet:     SelfArgVisitor::new(tcx, ProjectionElem::Field(FieldIdx::ZERO, ref_coroutine_ty))
context_before:     // Add the Pin field access to accesses of the coroutine state
context_after:         .visit_body(body);