Fix another instance of -ccc-cxx vs. --driver-mode=g++


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@186609 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ubsan/lit_tests/TypeCheck/vptr.cpp b/lib/ubsan/lit_tests/TypeCheck/vptr.cpp
index 109e7a8..3159f36 100644
--- a/lib/ubsan/lit_tests/TypeCheck/vptr.cpp
+++ b/lib/ubsan/lit_tests/TypeCheck/vptr.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang -ccc-cxx -fsanitize=vptr %s -O3 -o %t
+// RUN: %clang --driver-mode=g++ -fsanitize=vptr %s -O3 -o %t
 // RUN: %t rT && %t mT && %t fT && %t cT
 // RUN: %t rU && %t mU && %t fU && %t cU
 // RUN: %t rS && %t rV && %t oV