IR: Make metadata typeless in assembly, clang side

Match LLVM changes from r224257.

llvm-svn: 224259
diff --git a/clang/test/CodeGenCXX/debug-info-varargs.cpp b/clang/test/CodeGenCXX/debug-info-varargs.cpp
index 6175e65..25e8f35 100644
--- a/clang/test/CodeGenCXX/debug-info-varargs.cpp
+++ b/clang/test/CodeGenCXX/debug-info-varargs.cpp
@@ -2,21 +2,21 @@
 
 struct A
 {
-  // CHECK-DAG: metadata !{metadata !"0x2e\00a\00a\00_ZN1A1aEiz\00[[@LINE+1]]\00{{[^,]*}}"{{, [^,]+, [^,]+}}, metadata ![[ATY:[0-9]+]]{{.*}}[ DW_TAG_subprogram ]{{.*}}[a]
+  // CHECK-DAG:  !"0x2e\00a\00a\00_ZN1A1aEiz\00[[@LINE+1]]\00{{[^,]*}}"{{, [^,]+, [^,]+}}, ![[ATY:[0-9]+]]{{.*}}[ DW_TAG_subprogram ]{{.*}}[a]
   void a(int c, ...) {}
-  // CHECK: ![[ATY]] ={{.*}} metadata ![[AARGS:[0-9]+]], null, null, null} ; [ DW_TAG_subroutine_type ]
+  // CHECK: ![[ATY]] ={{.*}} ![[AARGS:[0-9]+]], null, null, null} ; [ DW_TAG_subroutine_type ]
   // We no longer use an explicit unspecified parameter. Instead we use a trailing null to mean the function is variadic.
-  // CHECK: ![[AARGS]] = metadata !{null, metadata !{{[0-9]+}}, metadata !{{[0-9]+}}, null}
+  // CHECK: ![[AARGS]] = !{null, !{{[0-9]+}}, !{{[0-9]+}}, null}
 };
 
-  // CHECK: metadata !{metadata !"0x2e\00b\00b\00_Z1biz\00[[@LINE+1]]\00{{[^,]*}}"{{, [^,]+, [^,]+}}, metadata ![[BTY:[0-9]+]]{{.*}}[ DW_TAG_subprogram ]{{.*}}[b]
+  // CHECK:  !"0x2e\00b\00b\00_Z1biz\00[[@LINE+1]]\00{{[^,]*}}"{{, [^,]+, [^,]+}}, ![[BTY:[0-9]+]]{{.*}}[ DW_TAG_subprogram ]{{.*}}[b]
 void b(int c, ...) {
-  // CHECK: ![[BTY]] ={{.*}} metadata ![[BARGS:[0-9]+]], null, null, null} ; [ DW_TAG_subroutine_type ]
-  // CHECK: ![[BARGS]] = metadata !{null, metadata !{{[0-9]+}}, null}
+  // CHECK: ![[BTY]] ={{.*}} ![[BARGS:[0-9]+]], null, null, null} ; [ DW_TAG_subroutine_type ]
+  // CHECK: ![[BARGS]] = !{null, !{{[0-9]+}}, null}
 
   A a;
 
-  // CHECK: metadata !{metadata !"0x100\00fptr\00[[@LINE+1]]\000"{{, [^,]+, [^,]+}}, metadata ![[PST:[0-9]+]]} ; [ DW_TAG_auto_variable ] [fptr] [line [[@LINE+1]]]
+  // CHECK:  !"0x100\00fptr\00[[@LINE+1]]\000"{{, [^,]+, [^,]+}}, ![[PST:[0-9]+]]} ; [ DW_TAG_auto_variable ] [fptr] [line [[@LINE+1]]]
   void (*fptr)(int, ...) = b;
-  // CHECK: ![[PST]] ={{.*}} metadata ![[BTY]]} ; [ DW_TAG_pointer_type ]
+  // CHECK: ![[PST]] ={{.*}} ![[BTY]]} ; [ DW_TAG_pointer_type ]
 }