refactor(core): remove deprecated OpaqueToken (#18971)

BREAKING CHANGE: `OpaqueToken` has been removed as it was deprecated since v4. Use `InjectionToken` instead.
PR Close #18971

packages/compiler-cli/integrationtest/test/basic_spec.ts

@@ -37,8 +37,7 @@ describe('template codegen output', () => {
   });
 
   it('should write .ngfactory.js for .d.ts inputs', () => {
-    const factoryOutput =
-        path.join('node_modules', '@angular2-material', 'button', 'button.ngfactory.js');
+    const factoryOutput = path.join('node_modules', '@angular', 'common', 'index.ngfactory.js');
     expect(fs.existsSync(factoryOutput)).toBeTruthy();
   });