unnecessary_wildcard_pattern

Unnecessary wildcard pattern.

The analyzer produces this diagnostic when a wildcard pattern is used in either an and (&&) pattern or an or (||) pattern.

The following code produces this diagnostic because the wildcard pattern (_) will always succeed, making it's use in an and pattern unnecessary:

void f(Object? x) {
  if (x case _ && 0) {}
}

Remove the use of the wildcard pattern:

void f(Object? x) {
  if (x case 0) {}
}