Do not crash when .ll printing metadata that smells like debug info, but isn't.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92268 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Assembler/metadata.ll b/test/Assembler/metadata.ll
new file mode 100644
index 0000000..5346d13
--- /dev/null
+++ b/test/Assembler/metadata.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | grep {ret void, !foo !0}
+define void @test() {
+  ret void, !foo !0
+;, !bar !1
+}
+
+!0 = metadata !{i32 662302, i32 26, metadata !1, null}
+!1 = metadata !{i32 4}