kotlin-fork/compiler/testData/diagnostics/tests/syntheticExtensions/FromTwoBases.kt

// FILE: KotlinFile.kt

interface C : A, B

fun foo(c: C) {
    c.setSomething(c.getSomething() + 1)
    c.something++
}

// FILE: A.java
public interface A {
    int getSomething();
}

// FILE: B.java
public interface B {
    int getSomething();
    void setSomething(int value);
}