warning: (Recovered) Internal inconsistency detected during lambda shape analysis

When transpiling nested lambda expression, the transpiler response in some cases with the warning `(Recovered) Internal inconsistency detected during lambda shape analysis`. But the transpiled code seems to work:

``` java
import org.junit.Test;

import static junit.framework.Assert.assertEquals;

public class J2ObjCLambdasTests {

public interface Func1 {

TRes invoke(T1 arg1) throws TException;
}

public interface Func {

TRes invoke() throws TException;
}

private T runFunc(Func f) {
return f.invoke();
}

private T loop(final Func1 f) {
f.invoke(1);
return f.invoke(0);
}

...

@Test
// warning: (Recovered) Internal inconsistency detected during lambda shape analysis
public void testNestedLambdaWarnings() {

String vOuter = "x";

String actual = loop(i -> {
return loop(ii -> {
return loop(iii -> "y" + i + " " + ii + " " + iii);
});
});

String expected = "y0 0 0";
assertEquals("expected '" + expected + "', actual: '" + actual + "'.", expected, actual);
}

...

}
```