ceylon_get_typechecker

        final Options opts = new Options().addRepo("build/runtime").outRepo("build/test/proto");
        final RepositoryManager repoman = CeylonUtils.repoManager()
                .cwd(opts.getCwd())
                .systemRepo(opts.getSystemRepo())
                .userRepos(opts.getRepos())
                .outRepo(opts.getOutRepo())
                .buildManager();
        JsModuleManagerFactory.setVerbose(true);
        TypeCheckerBuilder tcb = new TypeCheckerBuilder().verbose(false)
            .moduleManagerFactory(new JsModuleManagerFactory(null))
            .usageWarnings(false);