invariant_booleans: false positive on comparisons

[pschiffmann]

invariant_booleans reports the else if condition of the following code:

void f(int a, int b) {
  if (a < b) {
  } else if (b < a) {}
}

whereas this is correctly not reported:

void f(int a, int b) {
  if (a < b) {
  } else if (a > b) {}
}

I'm using the linter that is bundled with Dart 2.0.0-dev.66.0.

[pq]

/cc @alexeieleusis

[srawlins]

Duplicate of #57684?

[pschiffmann]

Duplicate of #57684?

Yes.