Fix a couple of pedantic gcc warnings.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161656 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/c-index-test/c-index-test.c b/tools/c-index-test/c-index-test.c
index f9b5cdf..5df21ec 100644
--- a/tools/c-index-test/c-index-test.c
+++ b/tools/c-index-test/c-index-test.c
@@ -3355,12 +3355,12 @@
 }
 
 int main(int argc, const char **argv) {
+  thread_info client_data;
+
 #ifdef CLANG_HAVE_LIBXML
   LIBXML_TEST_VERSION
 #endif
 
-  thread_info client_data;
-
   if (getenv("CINDEXTEST_NOTHREADS"))
     return cindextest_main(argc, argv);