fix PR6034, a crash on invalid where the switch stack would get 
unbalanced.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94347 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/statements.c b/test/Sema/statements.c
index 3cd2460..6da2daa 100644
--- a/test/Sema/statements.c
+++ b/test/Sema/statements.c
@@ -33,3 +33,11 @@
 bar:
   return &&bar;  // expected-warning {{returning address of label, which is local}}
 }
+
+// PR6034
+void test11(int bit) {
+  switch (bit)
+  switch (env->fpscr)  // expected-error {{use of undeclared identifier 'env'}}
+  {
+  }
+}