Helpers break on top-level `eval`

[Nikaple]

Describe the bug

When a variable is assigned to eval function, _setPrototypeOf will be removed by the mangler. This will cause a runtime error.

Input code

class A {
  constructor(A) {}
}
class B extends A {
  constructor(B) { super(B) }
}
const C = eval;
new B()

Config

{
  "jsc": {
    "parser": {
      "syntax": "ecmascript"
    },
    "target": "es5",
    "minify": {
      "compress": false,
      "mangle": true
    },
    "loose": false
  },
  "minify": true
}

Playground link

https://play.swc.rs/?version=1.2.224&code=H4sIAAAAAAAAA0vOSSwuVnBUqOZSUEjOzysuKSpNLskv0nDUVKiu5arlSgbLOymkVpSk5qVgU%2BkEVKlQXFqQCmaC9YBkFZwVbBVSyxJzrLnyUssVnDQ0AbMGxVtrAAAA&config=H4sIAAAAAAAAA0WLywqEMBAE%2F6XPXr3kb4YwkUheTM%2FCivjvmmXBW9NVdWJnRDgxxKg2F4%2Fm8kWAxiqMlofjWuBim%2Fq8uWJBzS2nY%2Fqx12FKIiQp1AdJ24oiuH30CUvv1D%2B83vBHb9xqQbR%2FAAAA

Expected behavior

No runtime error.

Actual behavior

Uncaught ReferenceError: _setPrototypeOf is not defined

Version

1.2.224

Additional context

No response

[kdy1]

I think we should apply helper injector before the minifier...