minifier: incorrect inlining to `for-in` with `let` declaration

[sapphi-red]

{
  var name = 'name1'
  const foo = { foo: 1 }
  name = 'name2'
  for (let name in foo) {
    console.log(name)
  }
  console.log(name)
}

is compressed to

var name = "name1";
for (let name in name = "name2", { foo: 1 }) console.log(name);
console.log(name);

. But this is incorrect because name is now shadowed after the compression.

playground

[sapphi-red]

#18651