[Test] Merge box against java testdata into codegen black box testsdata

compiler/testData/codegen/functions/constructor.kt

@@ -0,0 +1,21 @@
+// DONT_TARGET_EXACT_BACKEND: JS JS_IR JS_IR_ES6 WASM NATIVE
+// MODULE: lib
+// FILE: A.java
+
+class A {
+    public A() {}
+
+    public A(String x) {}
+
+    public A(long l, double z) {}
+}
+
+// MODULE: main(lib)
+// FILE: 1.kt
+
+fun box(): String {
+    A()
+    A("")
+    A(0.toLong(), 0.0)
+    return "OK"
+}