K2: reproduce a problem from intellij.vcs.git

compiler/testData/diagnostics/tests/j+k/withTestConnection.fir.kt

@@ -0,0 +1,35 @@
+// FULL_JDK
+// JVM_TARGET: 1.8
+
+// FILE: test.kt
+
+fun waitTestConnection(configurable: A) {
+    val res = configurable.test()
+    <!NEW_INFERENCE_ERROR!>C.wait(res!!.toFuture())<!>
+}
+
+// FILE: A.java
+
+import org.jetbrains.annotations.*;
+
+public interface A {
+    @Nullable B<?> test();
+}
+
+// FILE: B.kt
+
+import java.util.concurrent.CompletableFuture
+
+abstract class B<S> {
+    abstract fun toFuture(): CompletableFuture<S>
+}
+
+// FILE: C.java
+
+import java.util.concurrent.Future;
+
+public class C {
+    public static <F> F wait(Future<F> future) {
+        return null;
+    }
+}

compiler/testData/diagnostics/tests/j+k/withTestConnection.kt

@@ -0,0 +1,35 @@
+// FULL_JDK
+// JVM_TARGET: 1.8
+
+// FILE: test.kt
+
+fun waitTestConnection(configurable: A) {
+    val res = configurable.test()
+    C.wait(res!!.toFuture())
+}
+
+// FILE: A.java
+
+import org.jetbrains.annotations.*;
+
+public interface A {
+    @Nullable B<?> test();
+}
+
+// FILE: B.kt
+
+import java.util.concurrent.CompletableFuture
+
+abstract class B<S> {
+    abstract fun toFuture(): CompletableFuture<S>
+}
+
+// FILE: C.java
+
+import java.util.concurrent.Future;
+
+public class C {
+    public static <F> F wait(Future<F> future) {
+        return null;
+    }
+}