syntax_data: {"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"for"}]}
source_snippet:                 for field in variant.fields.iter() {
context_before:             for variant in tcx.adt_def(def_id).variants() {
context_after:                     rtry!(tcx.representability(field.did.expect_local()));