Add plugin loading for clang. This will be used to load alternative constraint manager for static analysis.

llvm-svn: 60091

clang/Driver/clang.cpp

@@ -47,6 +47,7 @@
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/PluginLoader.h"
 #include "llvm/System/Host.h"
 #include "llvm/System/Path.h"
 #include "llvm/System/Signals.h"