Add some ErrorUnsupported calls and turn on VLA codegen again.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61283 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/unsupported.c b/test/CodeGen/unsupported.c
index 2c87163..664119a 100644
--- a/test/CodeGen/unsupported.c
+++ b/test/CodeGen/unsupported.c
@@ -1,6 +1,6 @@
 // RUN: clang -verify -emit-llvm -o %t %s 
 
 int f0(int x) {
-  int vla[x]; // expected-error {{cannot codegen this variable-length array yet}}
-  return vla[x-1];
+  int vla[x];
+  return vla[x-1]; // expected-error {{cannot codegen this return inside scope with VLA yet}}
 }