!1 = !DIFile(filename: "z.c", directory: "/usr/local/google/home/echristo")
!2 = !{}
!3 = !{!4}
-!4 = !DISubprogram(name: "z", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: void ()* @z, variables: !2)
+!4 = distinct !DISubprogram(name: "z", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: void ()* @z, variables: !2)
!5 = !DIFile(filename: "z.c", directory: "/usr/local/google/home/echristo")
!6 = !DISubroutineType(types: !7)
!7 = !{null}