KT-2370: foo.equals(bar) doesn't compile in JS.

Only test.

  #KT-2370

js/js.tests/test/org/jetbrains/k2js/test/semantics/EqualsTest.java

@@ -41,4 +41,8 @@ public final class EqualsTest extends AbstractExpressionTest {
     public void testStringsEqual() throws Exception {
         fooBoxTest();
     }
+
+    public void testKt2370() throws Exception {
+        fooBoxTest();
+    }
 }

js/js.translator/testFiles/expression/equals/cases/kt2370.kt

@@ -0,0 +1,12 @@
+package foo
+
+import java.util.*
+fun box(): Boolean {
+    val data = ArrayList<String>()
+    data.add("foo")
+    data.add("bar")
+    data.add("whatnot")
+    val data2 = ArrayList<String>()
+    data2.addAll(data)
+    return data.equals(data2)
+}