Included assert.h so that the code compiles under newer versions of GCC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6682 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/Support/CommandLine.h b/include/Support/CommandLine.h
index aafef95..b524c97 100644
--- a/include/Support/CommandLine.h
+++ b/include/Support/CommandLine.h
@@ -19,6 +19,8 @@
 #include <cstdarg>
 #include "boost/type_traits/object_traits.hpp"
 
+#include <assert.h>
+
 /// cl Namespace - This namespace contains all of the command line option
 /// processing machinery.  It is intentionally a short name to make qualified
 /// usage concise.