{"ast_node_type":"other","tokens":[{"end":143,"kind":"keyword","start":0,"text":"//"}]}
                    // - expr_ctor_def_id :::                                   DefId(0:29 ~ source_file[b442]::Blah::Variant::{constructor#0})
                    // we get the following resolutions:
                    // - self.tcx.parent(expr_ctor_def_id) :::                  DefId(0:28 ~ source_file[b442]::Blah::Variant)