Updated the files.

my-app/node_modules/@schematics/angular/utility/add-declaration-to-ng-module.js

@@ -0,0 +1,68 @@
+"use strict";
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.addDeclarationToNgModule = void 0;
+const schematics_1 = require("@angular-devkit/schematics");
+const ts = __importStar(require("../third_party/github.com/Microsoft/TypeScript/lib/typescript"));
+const ast_utils_1 = require("./ast-utils");
+const change_1 = require("./change");
+const find_module_1 = require("./find-module");
+function addDeclarationToNgModule(options) {
+    return (host) => {
+        const modulePath = options.module;
+        if (options.skipImport || options.standalone || !modulePath) {
+            return host;
+        }
+        const sourceText = host.readText(modulePath);
+        const source = ts.createSourceFile(modulePath, sourceText, ts.ScriptTarget.Latest, true);
+        const filePath = `/${options.path}/` +
+            (options.flat ? '' : schematics_1.strings.dasherize(options.name) + '/') +
+            schematics_1.strings.dasherize(options.name) +
+            (options.type ? '.' : '') +
+            schematics_1.strings.dasherize(options.type);
+        const importPath = (0, find_module_1.buildRelativePath)(modulePath, filePath);
+        const classifiedName = schematics_1.strings.classify(options.name) + schematics_1.strings.classify(options.type);
+        const changes = (0, ast_utils_1.addDeclarationToModule)(source, modulePath, classifiedName, importPath);
+        if (options.export) {
+            changes.push(...(0, ast_utils_1.addSymbolToNgModuleMetadata)(source, modulePath, 'exports', classifiedName));
+        }
+        const recorder = host.beginUpdate(modulePath);
+        for (const change of changes) {
+            if (change instanceof change_1.InsertChange) {
+                recorder.insertLeft(change.pos, change.toAdd);
+            }
+        }
+        host.commitUpdate(recorder);
+        return host;
+    };
+}
+exports.addDeclarationToNgModule = addDeclarationToNgModule;