FIR: Fix ambiguity on Int2IntMap in IC

compiler/testData/codegen/box/builtinStubMethods/int2IntMap.kt

@@ -0,0 +1,100 @@
+// TARGET_BACKEND: JVM
+// JVM_TARGET: 1.8
+
+// FILE: Int2IntFunction.java
+public interface Int2IntFunction {
+    boolean containsKey(int key);
+
+    @Deprecated
+    default boolean containsKey(Object key) {
+        return false;
+    }
+}
+// FILE: Int2IntMap.java
+public interface Int2IntMap extends Int2IntFunction, java.util.Map<Integer, Integer> {
+    boolean containsKey(int var1);
+
+    @Deprecated
+    default boolean containsKey(Object key) {
+        return Int2IntFunction.super.containsKey(key);
+    }
+}
+
+// FILE: Int2IntMapImpl.java
+import java.util.Collection;
+import java.util.Map;
+import java.util.Set;
+
+public class Int2IntMapImpl implements Int2IntMap {
+    @Override
+    public boolean containsKey(int var1) {
+        return var1 == 56;
+    }
+
+    @Override
+    public int size() {
+        return 0;
+    }
+
+    @Override
+    public boolean isEmpty() {
+        return false;
+    }
+
+    @Override
+    public boolean containsValue(Object value) {
+        return false;
+    }
+
+    @Override
+    public Integer get(Object key) {
+        return null;
+    }
+
+    @Override
+    public Integer put(Integer key, Integer value) {
+        return null;
+    }
+
+    @Override
+    public Integer remove(Object key) {
+        return null;
+    }
+
+    @Override
+    public void putAll(Map<? extends Integer, ? extends Integer> m) {
+
+    }
+
+    @Override
+    public void clear() {
+
+    }
+
+    @Override
+    public Set<Integer> keySet() {
+        return null;
+    }
+
+    @Override
+    public Collection<Integer> values() {
+        return null;
+    }
+
+    @Override
+    public Set<Entry<Integer, Integer>> entrySet() {
+        return null;
+    }
+}
+
+
+// FILE: m.kt
+fun foo(x: Int2IntMap): String {
+    if (!x.containsKey(56)) return "fail 1"
+    if (x.containsKey(239)) return "fail 1"
+    return "OK"
+}
+
+fun box(): String {
+    return foo(Int2IntMapImpl())
+}