fix(config): set default outDir when allowJs is true and no outDir in tsconfig (#1502)

Author: ahnpnl

e2e/__cases__/allow-js/bar.spec.ts renamed to e2e/__cases__/allow-js/with-outDir/bar.spec.ts

@@ -0,0 +1,10 @@
+import * as foo from './foo'
+import bar = require('./bar')
+
+test('foo', () => {
+  expect(foo).toBe('FOO!')
+})
+
+test('bar', () => {
+  expect(bar).toBe('BAR!')
+})

e2e/__cases__/allow-js/bar.ts renamed to e2e/__cases__/allow-js/with-outDir/bar.ts

@@ -0,0 +1 @@
+export = 'BAR!'

e2e/__cases__/allow-js/esm.spec.js renamed to e2e/__cases__/allow-js/with-outDir/esm.spec.js

@@ -0,0 +1,5 @@
+import * as bar from './bar'
+
+test('esm', () => {
+  expect(bar).toBe('BAR!')
+})

e2e/__cases__/allow-js/foo.js renamed to e2e/__cases__/allow-js/with-outDir/foo.js

@@ -0,0 +1 @@
+module.exports = 'FOO!'