[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/kt4753_2.kt

@@ -0,0 +1,24 @@
+// DONT_TARGET_EXACT_BACKEND: JS JS_IR JS_IR_ES6 WASM NATIVE
+// MODULE: lib
+// FILE: ParamBase.java
+
+class ParamBase<T> {}
+
+// FILE: F.java
+
+interface F<T> extends FBase<ParamBase<? extends T>> {
+}
+
+// FILE: FBase.java
+
+interface FBase<T> {
+    void call(T t);
+}
+
+// MODULE: main(lib)
+// FILE: 1.kt
+
+fun box(): String {
+    F<ParamBase<Int>>({}).call(ParamBase())
+    return "OK"
+}