How to use the @angular/tsc-wrapped.MetadataCollector function in @angular/tsc-wrapped

function CompilerHost(program, options, context) {
        this.program = program;
        this.options = options;
        this.context = context;
        this.metadataCollector = new tsc_wrapped_1.MetadataCollector();
        this.resolverCache = new Map();
        // normalize the path so that it never ends with '/'.
        this.basePath = path.normalize(path.join(this.options.basePath, '.')).replace(/\\/g, '/');
        this.genDir = path.normalize(path.join(this.options.genDir, '.')).replace(/\\/g, '/');
        var genPath = path.relative(this.basePath, this.genDir);
        this.isGenDirChildOfRootDir = genPath === '' || !genPath.startsWith('..');
    }
    // We use absolute paths on disk as canonical.

function CompilerHost(program, options, context, collectorOptions) {
        var _this = this;
        this.program = program;
        this.options = options;
        this.context = context;
        this.metadataCollector = new tsc_wrapped_1.MetadataCollector();
        this.resolverCache = new Map();
        this.flatModuleIndexCache = new Map();
        this.flatModuleIndexNames = new Set();
        this.flatModuleIndexRedirectNames = new Set();
        this.moduleFileNames = new Map();
        // normalize the path so that it never ends with '/'.
        this.basePath = path.normalize(path.join(this.options.basePath, '.')).replace(/\\/g, '/');
        this.genDir = path.normalize(path.join(this.options.genDir, '.')).replace(/\\/g, '/');
        var genPath = path.relative(this.basePath, this.genDir);
        this.isGenDirChildOfRootDir = genPath === '' || !genPath.startsWith('..');
        this.resolveModuleNameHost = Object.create(this.context);
        // When calling ts.resolveModuleName,
        // additional allow checks for .d.ts files to be done based on
        // checks for .ngsummary.json files,
        // so that our codegen depends on fewer inputs and requires to be called
        // less often.

function CompilerHost(program, options, context, collectorOptions) {
        var _this = this;
        this.program = program;
        this.options = options;
        this.context = context;
        this.metadataCollector = new tsc_wrapped_1.MetadataCollector();
        this.resolverCache = new Map();
        this.flatModuleIndexCache = new Map();
        this.flatModuleIndexNames = new Set();
        this.flatModuleIndexRedirectNames = new Set();
        this.moduleFileNames = new Map();
        // normalize the path so that it never ends with '/'.
        this.basePath = path.normalize(path.join(this.options.basePath, '.')).replace(/\\/g, '/');
        this.genDir = path.normalize(path.join(this.options.genDir, '.')).replace(/\\/g, '/');
        var genPath = path.relative(this.basePath, this.genDir);
        this.isGenDirChildOfRootDir = genPath === '' || !genPath.startsWith('..');
        this.resolveModuleNameHost = Object.create(this.context);
        // When calling ts.resolveModuleName,
        // additional allow checks for .d.ts files to be done based on
        // checks for .ngsummary.json files,
        // so that our codegen depends on fewer inputs and requires to be called
        // less often.

function ReflectorHost(program, compilerHost, options, context) {
        this.program = program;
        this.compilerHost = compilerHost;
        this.options = options;
        this.metadataCollector = new tsc_wrapped_1.MetadataCollector();
        this.typeCache = new Map();
        this.resolverCache = new Map();
        // normalize the path so that it never ends with '/'.
        this.basePath = path.normalize(path.join(this.options.basePath, '.')).replace(/\\/g, '/');
        this.genDir = path.normalize(path.join(this.options.genDir, '.')).replace(/\\/g, '/');
        this.context = context || new NodeReflectorHostContext(compilerHost);
        var genPath = path.relative(this.basePath, this.genDir);
        this.isGenDirChildOfRootDir = genPath === '' || !genPath.startsWith('..');
    }
    ReflectorHost.prototype.angularImportLocations = function () {

function CompilerHost(program, options, context, collectorOptions) {
        var _this = this;
        this.program = program;
        this.options = options;
        this.context = context;
        this.metadataCollector = new tsc_wrapped_1.MetadataCollector();
        this.resolverCache = new Map();
        this.bundleIndexCache = new Map();
        this.bundleIndexNames = new Set();
        this.moduleFileNames = new Map();
        // normalize the path so that it never ends with '/'.
        this.basePath = path.normalize(path.join(this.options.basePath, '.')).replace(/\\/g, '/');
        this.genDir = path.normalize(path.join(this.options.genDir, '.')).replace(/\\/g, '/');
        var genPath = path.relative(this.basePath, this.genDir);
        this.isGenDirChildOfRootDir = genPath === '' || !genPath.startsWith('..');
        this.resolveModuleNameHost = Object.create(this.context);
        // When calling ts.resolveModuleName,
        // additional allow checks for .d.ts files to be done based on
        // checks for .ngsummary.json files,
        // so that our codegen depends on fewer inputs and requires to be called
        // less often.
        // This is needed as we use ts.resolveModuleName in reflector_host

function ReflectorHost(program, compilerHost, options, context) {
        this.program = program;
        this.compilerHost = compilerHost;
        this.options = options;
        this.metadataCollector = new tsc_wrapped_1.MetadataCollector();
        this.typeCache = new Map();
        this.resolverCache = new Map();
        // normalize the path so that it never ends with '/'.
        this.basePath = path.normalize(path.join(this.options.basePath, '.')).replace(/\\/g, '/');
        this.genDir = path.normalize(path.join(this.options.genDir, '.')).replace(/\\/g, '/');
        this.context = context || new NodeReflectorHostContext();
        var genPath = path.relative(this.basePath, this.genDir);
        this.isGenDirChildOfRootDir = genPath === '' || !genPath.startsWith('..');
    }
    ReflectorHost.prototype.angularImportLocations = function () {

function CompilerHost(program, options, context, collectorOptions) {
        var _this = this;
        this.program = program;
        this.options = options;
        this.context = context;
        this.metadataCollector = new tsc_wrapped_1.MetadataCollector();
        this.resolverCache = new Map();
        this.bundleIndexCache = new Map();
        this.bundleIndexNames = new Set();
        this.moduleFileNames = new Map();
        // normalize the path so that it never ends with '/'.
        this.basePath = path.normalize(path.join(this.options.basePath, '.')).replace(/\\/g, '/');
        this.genDir = path.normalize(path.join(this.options.genDir, '.')).replace(/\\/g, '/');
        var genPath = path.relative(this.basePath, this.genDir);
        this.isGenDirChildOfRootDir = genPath === '' || !genPath.startsWith('..');
        this.resolveModuleNameHost = Object.create(this.context);
        // When calling ts.resolveModuleName,
        // additional allow checks for .d.ts files to be done based on
        // checks for .ngsummary.json files,
        // so that our codegen depends on fewer inputs and requires to be called
        // less often.
        // This is needed as we use ts.resolveModuleName in reflector_host

function AngularCompilerProgram(rootNames, options, host, oldProgram) {
        this.rootNames = rootNames;
        this.options = options;
        this.host = host;
        this.oldProgram = oldProgram;
        this._structuralDiagnostics = [];
        this.oldTsProgram = oldProgram ? oldProgram.getTsProgram() : undefined;
        this.tsProgram = ts.createProgram(rootNames, options, host, this.oldTsProgram);
        this.srcNames = this.tsProgram.getSourceFiles().map(function (sf) { return sf.fileName; });
        this.aotCompilerHost = new compiler_host_1.CompilerHost(this.tsProgram, options, host);
        if (host.readResource) {
            this.aotCompilerHost.loadResource = host.readResource.bind(host);
        }
        var compiler = compiler_1.createAotCompiler(this.aotCompilerHost, options).compiler;
        this.compiler = compiler;
        this.collector = new tsc_wrapped_1.MetadataCollector({ quotedNames: true });
    }
    // Program implementation

function ReflectorHost(program, compilerHost, options, context) {
        this.program = program;
        this.compilerHost = compilerHost;
        this.options = options;
        this.metadataCollector = new tsc_wrapped_1.MetadataCollector();
        this.typeCache = new Map();
        this.resolverCache = new Map();
        // normalize the path so that it never ends with '/'.
        this.basePath = path.normalize(path.join(this.options.basePath, '.')).replace(/\\/g, '/');
        this.genDir = path.normalize(path.join(this.options.genDir, '.')).replace(/\\/g, '/');
        this.context = context || new NodeReflectorHostContext();
        var genPath = path.relative(this.basePath, this.genDir);
        this.isGenDirChildOfRootDir = genPath === '' || !genPath.startsWith('..');
    }
    ReflectorHost.prototype.angularImportLocations = function () {