JS backend: fix order call super constructor

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

@@ -36,6 +36,10 @@ public final class ClassInheritanceTest extends SingleFileTranslationTest {
         checkFooBoxIsOk();
     }
 
+    public void testBaseCallOrder() throws Exception {
+        checkFooBoxIsOk();
+    }
+
     public void testCrazyInheritance() throws Exception {
         checkFooBoxIsOk();
     }

js/js.translator/src/org/jetbrains/k2js/translate/initializer/ClassInitializerTranslator.java

@@ -117,7 +117,7 @@ public final class ClassInitializerTranslator extends AbstractTranslator {
         JsInvocation call = new JsInvocation(Namer.getFunctionCallRef(Namer.superMethodNameRef(ref)));
         call.getArguments().add(JsLiteral.THIS);
         call.getArguments().addAll(arguments);
-        initializerStatements.add(call.makeStmt());
+        initializerStatements.add(0, call.makeStmt());
     }
 
     @NotNull

js/js.translator/testFiles/inheritance/cases/baseCallOrder.kt

@@ -0,0 +1,19 @@
+package foo
+
+var x = false
+
+open class A {
+    {
+        x = (this as B).a != 3
+    }
+}
+
+class B(val a: Int = 3) : A() {
+
+}
+
+fun box(): String {
+    B()
+    if (!x) return "fail"
+    return "OK"
+}