Test for KT-2532 Exception on trying to override delegated member.

#KT-2532 Fixed

compiler/testData/codegen/classes/kt2532.kt

@@ -0,0 +1,15 @@
+package foo
+
+trait B {
+    val c: Int
+        get() = 2
+}
+
+class A(val b: B) : B by b {
+    override val c: Int = 3
+}
+
+fun box(): String {
+    val c = A(object: B {}).c
+    return if (c == 3) "OK" else "fail: $c"
+}

compiler/tests/org/jetbrains/jet/codegen/ClassGenTest.java

@@ -122,6 +122,11 @@ public class ClassGenTest extends CodegenTestCase {
         blackBoxFile("classes/inheritedInnerClass.jet");
     }
 
+    public void testKt2532() throws Exception {
+        createEnvironmentWithMockJdkAndIdeaAnnotations(ConfigurationKind.JDK_ONLY);
+        blackBoxFile("classes/kt2532.kt");
+    }
+
     public void testInitializerBlock() throws Exception {
         createEnvironmentWithMockJdkAndIdeaAnnotations(ConfigurationKind.JDK_ONLY);
         blackBoxFile("classes/initializerBlock.jet");