build: fix build failures (#20470)

packages/compiler-cli/test/perform_watch_spec.ts

@@ -119,7 +119,7 @@ describe('perform watch', () => {
     const errorFileContent = `
       import {NgModule} from '@angular/core';
 
-      @NgModule(() => (1===1 ? null as any : null as any))
+      @NgModule((() => (1===1 ? null as any : null as any)) as any)
       export class MyModule {}
     `;
     const indexTsPath = path.resolve(testSupport.basePath, 'src', 'index.ts');

packages/compiler-cli/test/transformers/program_spec.ts

@@ -325,7 +325,7 @@ describe('ng program', () => {
          'src/main.ts': `
         import {NgModule} from '@angular/core';
 
-        @NgModule(() => {if (1==1) return null as any;})
+        @NgModule((() => {if (1==1) return null as any;}) as any)
         export class SomeClassWithInvalidMetadata {}
       `,
        });

packages/core/test/di/static_injector_spec.ts

@@ -288,7 +288,7 @@ export function main() {
           Injector.create([CarWithDashboard.PROVIDER, Engine.PROVIDER, Dashboard.PROVIDER]);
       expect(() => injector.get(CarWithDashboard))
           .toThrowError(
-              `StaticInjectorError[${stringify(CarWithDashboard)} -> ${stringify(Dashboard)} -> DashboardSoftware]:
+              `StaticInjectorError[${stringify(CarWithDashboard)} -> ${stringify(Dashboard)} -> DashboardSoftware]: 
   NullInjectorError: No provider for DashboardSoftware!`);
     });
 
@@ -415,7 +415,7 @@ export function main() {
             parent);
 
         expect(() => child.get(Car))
-            .toThrowError(`StaticInjectorError[${stringify(Car)} -> ${stringify(Engine)}]:
+            .toThrowError(`StaticInjectorError[${stringify(Car)} -> ${stringify(Engine)}]: 
   NullInjectorError: No provider for Engine!`);
       });
     });