Add 'rv' property to getAllDescriptors() in script classes

compiler/frontend/src/org/jetbrains/jet/lang/resolve/lazy/descriptors/LazyScriptClassMemberScope.java

@@ -16,6 +16,7 @@
 
 package org.jetbrains.jet.lang.resolve.lazy.descriptors;
 
+import kotlin.KotlinPackage;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.lang.descriptors.*;
@@ -26,6 +27,7 @@ import org.jetbrains.jet.lang.resolve.lazy.data.JetScriptInfo;
 import org.jetbrains.jet.lang.resolve.lazy.declarations.ClassMemberDeclarationProvider;
 import org.jetbrains.jet.lang.resolve.name.Name;
 
+import java.util.Collection;
 import java.util.Set;
 
 // SCRIPT: Members of a script class
@@ -39,6 +41,15 @@ public class LazyScriptClassMemberScope extends LazyClassMemberScope {
         super(resolveSession, declarationProvider, thisClass, trace);
     }
 
+    @NotNull
+    @Override
+    protected Collection<DeclarationDescriptor> computeExtraDescriptors() {
+        return KotlinPackage.plus(
+                super.computeExtraDescriptors(),
+                getProperties(Name.identifier(ScriptDescriptor.LAST_EXPRESSION_VALUE_FIELD_NAME))
+        );
+    }
+
     @Override
     protected void getNonDeclaredProperties(@NotNull Name name, @NotNull Set<VariableDescriptor> result) {
         super.getNonDeclaredProperties(name, result);