[JS IR] Fix kotlin.js.js with complex constant expressions

Use IR interpreter to evaluate complex constexprs

js/js.translator/testData/box/jsCode/constantExpression.kt

@@ -0,0 +1,13 @@
+// EXPECTED_REACHABLE_NODES: 1282
+package foo
+
+const val x = '2'
+const val y = '+'
+const val z = '3'
+
+fun box(): String {
+    if (js(x.toString() + z) !== 23) return "Fail 1"
+    if (js(x.toString() + y + z) !== 5) return "Fail 2"
+
+    return "OK"
+}