Function addFileIncludeReason

test/fixtures/snapshot/typescript.js:118357–118360

(file, reason)

            return file;
        }
        function addFileIncludeReason(file, reason) {
            if (file)
                fileReasons.add(file.path, reason);
        }
        function addFileToFilesByName(file, path, redirectedPath) {
            if (redirectedPath) {
                filesByName.set(redirectedPath, file);