title: How to get rid of experimentalDecorators warning in Eclipse for angular4 project
body: <p>I just used anglar4 cli to create a new project, and start getting below error.</p>
  
  <pre><code>Experimental support for decorators is a feature that is subject to change in a future release. Set 
   the 'experimentalDecorators' option to remove this warning.
  </code></pre>
  
  <p>For each annotation.</p>
  
  <p>I did not use ng cli before, then I do not see any similar warning.</p>
  
  <p>I check my tsconfig, </p>
  
  <pre><code>{
    "compileOnSave": false,
    "compilerOptions": {
      "outDir": "./dist/out-tsc",
      "baseUrl": "src",
      "sourceMap": true,
      "declaration": false,
      "moduleResolution": "node",
      "emitDecoratorMetadata": true,
      "experimentalDecorators": true,
      "target": "es5",
      "module": "commonjs",
      "noImplicitAny": false,
      "suppressImplicitAnyIndexErrors": true,
      "typeRoots": [
        "node_modules/@types"
      ],
  
      "exclude": 
      [
          "node_modules",
          "**/*.spec.ts"
      ],
  
      "lib": [
        "es2016",
        "dom"
      ]
    }
  }
  </code></pre>
  
  <p>nothing is special.</p>
  
  <p>How can I remove the warning in Eclipse for angular4 project? this is very annoying false alert.</p>
  
  <p>I used typescript plugin in Eclipse.</p>