[explicit-function-return-type] allowTypedFunctionExpressions flag should ignore class methods written as arrow functions

[ayush000]

Repro

"rules": {
    "@typescript-eslint/explicit-function-return-type": [1, {
      "allowTypedFunctionExpressions": true
    }]
  },

type MethodType = () => void;

class App {
  private method: MethodType = () => {}
}

Expected Result
The explicit-function-return-type rule (with allowTypedFunctionExpressions=true) should not complain/be triggered by the code above.

Actual Result
I get the warning "Missing return type on function." for the private method

Versions

package	version
@typescript-eslint/eslint-plugin	1.7.0
@typescript-eslint/parser	1.7.0
TypeScript	3.4.5
ESLint	5.16.0
node	12.0.0
yarn	1.15.2