added test case for KT-2355

js/js.translator/testFiles/expression/stringTemplates/cases/objectWithToString.kt

@@ -0,0 +1,14 @@
+package foo
+
+class Foo(val name: String) {
+  public fun toString(): String {
+    return name + "S"
+  }
+}
+
+fun box(): String {
+    val a = Foo("abc")
+    val b = Foo("def")
+    val message = "a = $a, b = $b"
+    return message
+}