build: remove main() from specs (#21053)

PR Close #21053

packages/common/test/pipes/async_pipe_spec.ts

@@ -14,7 +14,7 @@ import {browserDetection} from '@angular/platform-browser/testing/src/browser_ut
 
 import {SpyChangeDetectorRef} from '../spies';
 
-export function main() {
+{
   describe('AsyncPipe', () => {
 
     describe('Observable', () => {

packages/common/test/pipes/case_conversion_pipes_spec.ts

@@ -8,7 +8,7 @@
 
 import {LowerCasePipe, TitleCasePipe, UpperCasePipe} from '@angular/common';
 
-export function main() {
+{
   describe('LowerCasePipe', () => {
     let pipe: LowerCasePipe;
 

packages/common/test/pipes/date_pipe_spec.ts

@@ -16,7 +16,7 @@ import localeHu from '../../locales/hu';
 import localeSr from '../../locales/sr';
 import localeTh from '../../locales/th';
 
-export function main() {
+{
   describe('DatePipe', () => {
     let date: Date;
     const isoStringWithoutTime = '2015-01-01';

packages/common/test/pipes/deprecated/date_pipe_spec.ts

@@ -11,7 +11,7 @@ import {PipeResolver} from '@angular/compiler/src/pipe_resolver';
 import {JitReflector} from '@angular/platform-browser-dynamic/src/compiler_reflector';
 import {browserDetection} from '@angular/platform-browser/testing/src/browser_util';
 
-export function main() {
+{
   describe('DeprecatedDatePipe', () => {
     let date: Date;
     const isoStringWithoutTime = '2015-01-01';

packages/common/test/pipes/deprecated/number_pipe_spec.ts

@@ -10,7 +10,7 @@ import {DeprecatedCurrencyPipe, DeprecatedDecimalPipe, DeprecatedPercentPipe} fr
 import {beforeEach, describe, expect, it} from '@angular/core/testing/src/testing_internal';
 import {browserDetection} from '@angular/platform-browser/testing/src/browser_util';
 
-export function main() {
+(function(){
   function isNumeric(value: any): boolean { return !isNaN(value - parseFloat(value)); }
 
   // Between the symbol and the number, Edge adds a no breaking space and IE11 adds a standard space
@@ -106,4 +106,4 @@ export function main() {
          () => { expect(isNumeric('2a')).toBe(false); });
     });
   });
-}
+})();

packages/common/test/pipes/i18n_plural_pipe_spec.ts

@@ -11,7 +11,7 @@ import {PipeResolver} from '@angular/compiler/src/pipe_resolver';
 import {beforeEach, describe, expect, it} from '@angular/core/testing/src/testing_internal';
 import {JitReflector} from '@angular/platform-browser-dynamic/src/compiler_reflector';
 
-export function main() {
+{
   describe('I18nPluralPipe', () => {
     let localization: NgLocalization;
     let pipe: I18nPluralPipe;

packages/common/test/pipes/i18n_select_pipe_spec.ts

@@ -10,7 +10,7 @@ import {I18nSelectPipe} from '@angular/common';
 import {PipeResolver} from '@angular/compiler/src/pipe_resolver';
 import {JitReflector} from '@angular/platform-browser-dynamic/src/compiler_reflector';
 
-export function main() {
+{
   describe('I18nSelectPipe', () => {
     const pipe: I18nSelectPipe = new I18nSelectPipe();
     const mapping = {'male': 'Invite him.', 'female': 'Invite her.', 'other': 'Invite them.'};

packages/common/test/pipes/json_pipe_spec.ts

@@ -11,7 +11,7 @@ import {Component} from '@angular/core';
 import {TestBed, async} from '@angular/core/testing';
 import {expect} from '@angular/platform-browser/testing/src/matchers';
 
-export function main() {
+{
   describe('JsonPipe', () => {
     const regNewLine = '\n';
     let inceptionObj: any;

packages/common/test/pipes/number_pipe_spec.ts

@@ -12,7 +12,7 @@ import localeFr from '../../locales/fr';
 import {registerLocaleData, CurrencyPipe, DecimalPipe, PercentPipe} from '@angular/common';
 import {beforeEach, describe, expect, it} from '@angular/core/testing/src/testing_internal';
 
-export function main() {
+{
   describe('Number pipes', () => {
     beforeAll(() => {
       registerLocaleData(localeEn);

packages/common/test/pipes/slice_pipe_spec.ts

@@ -11,7 +11,7 @@ import {Component} from '@angular/core';
 import {TestBed, async} from '@angular/core/testing';
 import {expect} from '@angular/platform-browser/testing/src/matchers';
 
-export function main() {
+{
   describe('SlicePipe', () => {
     let list: number[];
     let str: string;