System functions ord/chr in extension method cause ambiguous call error on iOS

Elements Elements Bugs
1 
public static class Utils1{

    public void doSth(object a, object b){
    }

    // The ord/chr in extension methods cause the problem that methods in Utils1 and Utils2 are mixed.
    public int toInt(this char c) => ord(c);
    public char toChar(this int v) => chr(v);

}

public static class Utils2{
    public void doSth(int a, int b){
    }
}

public static class MyTest{
    public void test(){
        var a = new Sugar.Collections.List<int>(){1};

        // Compile error: (E110) Ambiguous call to overloaded method "doSth"
        Utils2.doSth(a[0], 1);
    }
}

Elements 8.2.88.1857
Test Project: App1.zip (111.6 KB)

2

Thanks, logged as bugs://73266

3

bugs://73266 got closed with status fixed.