syntax_data: {"ast_node_type":"other","tokens":[{"end":32,"kind":"keyword","start":0,"text":"err.code(E0119);"}]}
source_snippet:                 err.code(E0119);
context_before:                 let mut err = tcx.dcx().struct_span_err(impl_span, msg());
context_after:                 decorate(tcx, &overlap, impl_span, &mut err);