[Bug]: keywords allowed for identifiers in Typescript

[tolmasky]

💻

• Would you like to work on a fix?

How are you using Babel?

Programmatic API (babel.transform, babel.parse)

Input code

require("@babel/parser").parse("function if({ const, while, with, let }){}",
{
    sourceType: "module",
    plugins: ["typescript"]
})

RunKit link: https://runkit.com/tolmasky/keywords-as-identifiers-in-typescript

Configuration file name

No response

Configuration

No response

Current and expected behavior

Current behavior: no error
Expected behavior: Should throw an error.

Environment

• Babel 7.17.3

Possible solution

This is fixed in #14320

Additional context

No response

[babel-bot]

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