One of the necessary changes for Clang 3.6 libtooling exampl

class ExampleFrontendAction : public ASTFrontendAction {
public:
    virtual std::unique_ptr<ASTConsumer> CreateASTConsumer(CompilerInstance &CI, StringRef file) {
        return std::unique_ptr<ASTConsumer>(new ExampleASTConsumer(&CI)); // pass CI pointer to ASTConsumer
    }
};