Call clang_disposeTokens() when we are done with the set of tokens.

llvm-svn: 116946
diff --git a/clang/tools/c-index-test/c-index-test.c b/clang/tools/c-index-test/c-index-test.c
index 84ceab2..32cada0 100644
--- a/clang/tools/c-index-test/c-index-test.c
+++ b/clang/tools/c-index-test/c-index-test.c
@@ -1234,6 +1234,7 @@
     printf("\n");
   }
   free(cursors);
+  clang_disposeTokens(TU, tokens, num_tokens);
 
  teardown:
   PrintDiagnostics(TU);