Port testcase to llvm-800.

(cherry picked from commit a26ca57)

Author: adrian-prantl

test/DebugInfo/basic.swift

@@ -67,7 +67,8 @@ func foo(_ a: Int64, _ b: Int64) -> Int64 {
 
 // Function type for foo.
 // CHECK-DAG: ![[FOOTYPE]] = !DISubroutineType(types: ![[PARAMTYPES:[0-9]+]])
-// CHECK-DAG: ![[PARAMTYPES]] = !{!"_TtVs5Int64", !"_TtVs5Int64", !"_TtVs5Int64"}
+// CHECK-DAG: ![[INT64:.*]] = !DICompositeType(tag: DW_TAG_structure_type, name: "Int64", {{.*}}, identifier: "_TtVs5Int64")
+// CHECK-DAG: ![[PARAMTYPES]] = !{![[INT64]], ![[INT64]], ![[INT64]]}
 // Import of the main module with the implicit name.
 // CHECK-DAG: !DIImportedEntity(tag: DW_TAG_imported_module, scope: ![[MAINFILE]], entity: ![[MAINMODULE:[0-9]+]], line: 1)
 // CHECK-DAG: ![[MAINMODULE]] = !DIModule({{.*}}, name: "basic"