astUtils.isDecimalInteger should return true for NonOctalDecimalIntegerLiteral literals

[mdjermanovic]

Tell us about your environment

• ESLint Version: 7.7.0
• Node Version: v12.14.0
• npm Version: v6.13.4

What parser (default, Babel-ESLint, etc.) are you using?

default

Please show your full configuration:

Configuration

module.exports = {
  parserOptions: {
    ecmaVersion: 2015
  }
}

What did you do? Please include the actual source code causing the issue, as well as the command that you used to run ESLint.

Online Demo

/* eslint no-extra-parens: error */

(08).toString();

npx eslint index.js --fix

What did you expect to happen?

No error, because the rule doesn't report errors on other number literals that can be continued with decimal dot.

What actually happened? Please include the actual, raw output from ESLint.

Error and autofix to:

/* eslint no-extra-parens: error */

08.toString();

Error on the fixed code:

  3:4  error  Parsing error: Identifier directly after number

Are you willing to submit a pull request to fix this bug?

Yes, after we merge #13581