[5.2.0-rc.1] Does not build in prod mode

[jw61]

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Current behavior
Even a fresh clone of primeng-quickstart-cli without any modifications does not build in prod mode with PrimeNG 5.2.0-rc.1 using the command ng build -prod. This results in the error:
ERROR in : Unexpected value 'TableModule in C:/tmp/primeng-quickstart-cli-master/node_modules/primeng/table.js' imported by the module 'AppModule in C:/tmp/primeng-quickstart-cli-master/src/app/app.module.ts'. Please add a @NgModule annotation.

Expected behavior
PrimeNG 5.2.0-rc.1 should build in prod mode

Minimal reproduction of the problem with instructions

• Download primeng-quickstart-cli from https://github.com/primefaces/primeng-quickstart-cli
• Run: npm install
• Run: ng build -prod
• ERROR in : Unexpected value 'TableModule in C:/tmp/primeng-quickstart-cli-master/node_modules/primeng/table.js' imported by the module 'AppModule in C:/tmp/primeng-quickstart-cli-master/src/app/app.module.ts'. Please add a @NgModule annotation.

What is the motivation / use case for changing the behavior?
Can't deploy PrimeNG if can't build in prod mode.

Please tell us about your environment:
Angular CLI: 1.6.3
Node: 8.9.4
OS: win32 x64
Angular: 5.2.1

• Angular version: 5.2.1

• PrimeNG version: 5.2.0-rc.1

• Browser: [all | Chrome XX | Firefox XX | IE XX | Safari XX | Mobile Chrome XX | Android X.X Web Browser | iOS XX Safari | iOS XX UIWebView | iOS XX WKWebView ]
  Chrome: 63

• Language: [all | TypeScript X.X | ES6/7 | ES5]
  Typescript 2.4.2

• Node (for AoT issues): node --version =
  Node: 8.9.4

[ngohuunam]

me too

[cagataycivici]

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#4841