-4: parent: ExpnId(2), call_site_ctxt: #4, def_site_ctxt: #4, kind: Macro(Bang, "inner")
-5: parent: ExpnId(4), call_site_ctxt: #6, def_site_ctxt: #0, kind: Macro(Bang, "print_bang")
+4: parent: ExpnId(2), call_site_ctxt: #4, def_site_ctxt: #4, kind: Macro { kind: Bang, name: "inner", proc_macro: false }
+5: parent: ExpnId(4), call_site_ctxt: #6, def_site_ctxt: #0, kind: Macro { kind: Bang, name: "print_bang", proc_macro: true }