K2: fix/universalize logic to determine that member is from Java

compiler/fir/analysis-tests/testData/resolveWithStdlib/problems/isAncestor.kt

@@ -0,0 +1,53 @@
+// FILE: their/Condition.java
+
+package their;
+
+public interface Condition<T> {
+    boolean value (T t);
+}
+
+// FILE: your/ContainerUtil.java
+
+package your;
+
+import their.Condition;
+
+public final class ContainerUtil {
+    public static <T> T find(Iterable<? extends T> iterable, Condition<? super T> condition) {
+        return true;
+    }
+
+    public static <T> T find(Iterable<? extends T> iterable, T equalTo) {
+        return true;
+    }
+}
+
+// FILE: my/FileUtil.java
+
+package my;
+
+import java.io.File;
+
+public final class FileUtil {
+    public static boolean isAncestor(File ancestor, File file, boolean strict) {
+        return true;
+    }
+
+    public static boolean isAncestor(String ancestor, String file, boolean strict) {
+        return true;
+    }
+
+}
+
+// FILE: test.kt
+
+import java.io.File
+import my.FileUtil.*
+import your.ContainerUtil.find
+
+fun foo() {
+    val externalsMap = mutableMapOf<File, String?>()
+    fun test(file: File) {
+        val base = find(externalsMap.keys) { isAncestor(it, file, false) }
+    }
+}