P20_7 Var declaration distance: count statemtnts instead of lines

[g4s8]

I think P20_7 pattern may be more useful if it counts statements instead of lines, e.g. this code:

final CompletableFuture<Boolean> exists = new CompletableFuture<>();
object.asyncCall(() -> {
  // few lines of code here
  exists.complete(result);
});
return exists;

Has only one statement between returning the variable and declaration, but it has multiple lines, so it's a candidate for P20_7. I think amount of lines doesn't really make readability worse, but amount of statements does.

[0crat]

@acheshkov/z please, pay attention to this issue

[lyriccoder]

seems we count ncss, not lines of code. But idea is good.

@acheshkov @aravij Is it worth implementing it?