JS: move expressions test to box tests

js/js.translator/testData/box/expression/misc/KT-1361-2.kt

@@ -0,0 +1,51 @@
+package foo
+
+class Data(val rawData: Array<Int>, val width: Int, val height: Int) {
+    operator fun get(x: Int, y: Int): ColorLike {
+        return object : ColorLike {
+            override val red: Int = rawData[(y * width + x) * 4 + 0];
+            override val green: Int = rawData[(y * width + x) * 4 + 1];
+            override val blue: Int = rawData[(y * width + x) * 4 + 2];
+        }
+    }
+
+    operator fun set(x: Int, y: Int, color: ColorLike) {
+        rawData[(y * width + x) * 4 + 0] = color.red;
+        rawData[(y * width + x) * 4 + 1] = color.green;
+        rawData[(y * width + x) * 4 + 2] = color.blue;
+    }
+
+    fun each(block: (x: Int, y: Int) -> Unit) {
+        for (x in 0..width - 1) {
+            for (y in 0..height - 1) {
+                block(x, y)
+            }
+        }
+    }
+}
+
+class Color(r: Int, g: Int, b: Int) : ColorLike {
+    override val red: Int = r
+    override val green: Int = g
+    override val blue: Int = b
+}
+
+interface ColorLike {
+    val red: Int;
+    val green: Int;
+    val blue: Int;
+}
+
+fun box(): String {
+    val d = Data(Array(4) { 0 }, 1, 1)
+    if (d[0, 0].red != 0) {
+        return "fail1"
+    }
+    if (d[0, 0].green != 0) {
+        return "fail2"
+    }
+    if (d[0, 0].blue != 0) {
+        return "fail3"
+    }
+    return "OK"
+}