* fixed: #641 java.lang.IllegalAccessError: Attempt to access protected method from Lambda

[dkimitsa]

Code to reproduce:

package a;
public class A {
    protected foo(){};
}

package b;
import a.A;
public class B extends A{
    public void test() {
        Runnable r = ::foo;
        r.run();
    }
}

Root case: labda for B class is located in package b and can access protected members of A class from there.

Fix: for such kind of lambda a trampoline method is generated in calling class (which has all access to destination member) and instead of directly invoking method target -- this trampoline is invoked:

public class B extends A{
    public void test() {
        Runnable r = lambda(this);
        r.run();
    }

    static private lambda$1$run(B thiz) {
       thiz.foo();
    }
}
public class lambda implements Runnable {
    private final B thiz;
    lambda(B thiz) { this.thiz = thiz; }
    public void run() {
        B.lambda$1$run(thiz);
    }
}