fix PR3427: fix debuginfo for incomplete array types

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63158 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/debug-info.c b/test/CodeGen/debug-info.c
index f5a3163..2ecae9f 100644
--- a/test/CodeGen/debug-info.c
+++ b/test/CodeGen/debug-info.c
@@ -18,7 +18,13 @@
 struct s0 *f0(struct s0 *a0) {
   return a0->p;
 }
-  
+
 // PR3134
 char xpto[];
 
+// PR3427
+struct foo {
+	int a;
+	void *ptrs[];
+};
+struct foo bar;