refactor(@angular-devkit/build-angular): rename ngModuleDef to ɵmod

Author: alan-agius4

packages/angular_devkit/build_angular/plugins/webpack/analytics.ts

@@ -164,7 +164,7 @@ export class NgBuildAnalyticsPlugin {
 
       // Check whether this is an Ivy app so that it can reported as part of analytics.
       if (!this._stats.isIvy) {
-        if (numIvyComponents > 0 || module._source.source().includes('ngModuleDef')) {
+        if (numIvyComponents > 0 || module._source.source().includes('ɵmod')) {
           this._stats.isIvy = true;
         }
       }

packages/angular_devkit/build_angular/test/browser/lazy-module_spec_large.ts

@@ -80,7 +80,7 @@ describe('Browser Builder lazy modules', () => {
         if (!veEnabled) {
           const data = await files['lazy-lazy-module.js'];
           expect(data).not.toBeUndefined('Lazy module output bundle does not exist');
-          expect(data).toContain('LazyModule.ngModuleDef');
+          expect(data).toContain('LazyModule.ɵmod');
         } else {
           expect(files['lazy-lazy-module-ngfactory.js']).not.toBeUndefined();
         }
@@ -270,7 +270,7 @@ describe('Browser Builder lazy modules', () => {
     if (!veEnabled) {
       const data = await files['src-app-lazy-lazy-module.js'];
       expect(data).not.toBeUndefined('Lazy module output bundle does not exist');
-      expect(data).toContain('LazyModule.ngModuleDef');
+      expect(data).toContain('LazyModule.ɵmod');
     } else {
       expect(files['src-app-lazy-lazy-module-ngfactory.js']).not.toBeUndefined();
     }

packages/angular_devkit/build_angular/test/server/base_spec_large.ts

@@ -37,7 +37,7 @@ describe('Server Builder', () => {
     if (veEnabled) {
       expect(content).toMatch(/AppServerModuleNgFactory/);
     } else {
-      expect(content).toMatch(/AppServerModule\.ngModuleDef/);
+      expect(content).toMatch(/AppServerModule\.ɵmod/);
     }
 
     await run.stop();
@@ -148,7 +148,7 @@ describe('Server Builder', () => {
         if (veEnabled) {
           expect(content).toMatch(/AppServerModuleNgFactory/);
         } else {
-          expect(content).toMatch(/AppServerModule\.ngModuleDef/);
+          expect(content).toMatch(/AppServerModule\.ɵmod/);
         }
       }),
       take(1),

packages/angular_devkit/build_optimizer/src/transforms/wrap-enums_spec.ts

@@ -124,7 +124,7 @@ describe('wrap enums and classes transformer', () => {
         class ApplicationModule {
             constructor(appRef) { }
         }
-        ApplicationModule.ngModuleDef = ɵɵdefineNgModule({ type: ApplicationModule });
+        ApplicationModule.ɵmod = ɵɵdefineNgModule({ type: ApplicationModule });
         /*@__PURE__*/ setClassMetadata(ApplicationModule, [{
                 type: NgModule,
                 args: [{ providers: APPLICATION_MODULE_PROVIDERS }]
@@ -148,7 +148,7 @@ describe('wrap enums and classes transformer', () => {
     it('with nested static properties in IIFE', () => {
       const input = tags.stripIndent`
         class CommonModule { }
-        CommonModule.ngModuleDef = defineNgModule({
+        CommonModule.ɵmod = defineNgModule({
             type: CommonModule
         }), CommonModule.ngInjectorDef = defineInjector({
             factory: function (t) {