[Test] Properly merge box against java testdata into codegen/box

Previous commit about it was 3199ce03 and it was completely wrong

compiler/testData/codegen/box/sam/adapters/severalSamParameters.kt

@@ -0,0 +1,23 @@
+// DONT_TARGET_EXACT_BACKEND: JS JS_IR JS_IR_ES6 WASM NATIVE
+// MODULE: lib
+// FILE: JavaClass.java
+
+import java.util.*;
+
+class JavaClass {
+    public static String findMaxAndInvokeCallback(Comparator<String> comparator, String a, String b, Runnable afterRunnable) {
+        int compare = comparator.compare(a, b);
+        afterRunnable.run();
+        return compare > 0 ? a : b;
+    }
+}
+
+// MODULE: main(lib)
+// FILE: 1.kt
+
+fun box(): String {
+    var v = "FAIL"
+    val max = JavaClass.findMaxAndInvokeCallback({ a, b -> a.length - b.length }, "foo", "kotlin", { v = "OK" })
+    if (max != "kotlin") return "Wrong max: $max"
+    return v
+}