ES6 Destruct on Catch

[jupl]

Originally reported on eslint/eslint#2123.

Given the following snippet, with ESLint I get an error on the catch line with Unexpected token {. There are no errors/warnings reported on the other destructs.

function x({a}) {
  try {
    const {b} = a;
  }
  catch({stack}) {
  }
}

[nzakas]

Working on this.