diff --git a/compiler/frontend/serialization/src/org/jetbrains/jet/descriptors/serialization/DescriptorDeserializer.java b/compiler/frontend/serialization/src/org/jetbrains/jet/descriptors/serialization/DescriptorDeserializer.java
index 9f5c43b25b9..e77a220a01a 100644
--- a/compiler/frontend/serialization/src/org/jetbrains/jet/descriptors/serialization/DescriptorDeserializer.java
+++ b/compiler/frontend/serialization/src/org/jetbrains/jet/descriptors/serialization/DescriptorDeserializer.java
@@ -19,6 +19,7 @@ package org.jetbrains.jet.descriptors.serialization;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.descriptors.serialization.descriptors.AnnotationDeserializer;
+import org.jetbrains.jet.descriptors.serialization.descriptors.DeserializedSimpleFunctionDescriptor;
 import org.jetbrains.jet.descriptors.serialization.descriptors.DeserializedTypeParameterDescriptor;
 import org.jetbrains.jet.lang.descriptors.*;
 import org.jetbrains.jet.lang.descriptors.annotations.AnnotationDescriptor;
@@ -226,11 +227,10 @@ public class DescriptorDeserializer {
     @NotNull
     private CallableMemberDescriptor loadFunction(@NotNull Callable proto) {
         int flags = proto.getFlags();
-        SimpleFunctionDescriptorImpl function = new SimpleFunctionDescriptorImpl(
-                containingDeclaration,
-                getAnnotations(proto, proto.getFlags(), AnnotatedCallableKind.FUNCTION),
-                nameResolver.getName(proto.getName()),
-                memberKind(Flags.MEMBER_KIND.get(flags))
+        DeserializedSimpleFunctionDescriptor function = new DeserializedSimpleFunctionDescriptor(
+                containingDeclaration, proto,
+                annotationDeserializer,
+                nameResolver
         );
         List<TypeParameterDescriptor> typeParameters = new ArrayList<TypeParameterDescriptor>(proto.getTypeParameterCount());
         DescriptorDeserializer local = createChildDeserializer(function, proto.getTypeParameterList(), typeParameters);
@@ -274,6 +274,17 @@ public class DescriptorDeserializer {
 
     @NotNull
     private List<AnnotationDescriptor> getAnnotations(@NotNull Callable proto, int flags, @NotNull AnnotatedCallableKind kind) {
+        return getAnnotations(containingDeclaration, proto, flags, kind, annotationDeserializer, nameResolver);
+    }
+
+    public static List<AnnotationDescriptor> getAnnotations(
+            @NotNull DeclarationDescriptor containingDeclaration,
+            @NotNull Callable proto,
+            int flags,
+            @NotNull AnnotatedCallableKind kind,
+            @NotNull AnnotationDeserializer annotationDeserializer,
+            @NotNull NameResolver nameResolver
+    ) {
         assert containingDeclaration instanceof ClassOrNamespaceDescriptor
                 : "Only members in classes or namespaces should be serialized: " + containingDeclaration;
         return Flags.HAS_ANNOTATIONS.get(flags)
@@ -282,7 +293,7 @@ public class DescriptorDeserializer {
                : Collections.<AnnotationDescriptor>emptyList();
     }
 
-    private static CallableMemberDescriptor.Kind memberKind(Callable.MemberKind memberKind) {
+    public static CallableMemberDescriptor.Kind memberKind(Callable.MemberKind memberKind) {
         switch (memberKind) {
             case DECLARATION:
                 return CallableMemberDescriptor.Kind.DECLARATION;
diff --git a/compiler/frontend/serialization/src/org/jetbrains/jet/descriptors/serialization/descriptors/DeserializedSimpleFunctionDescriptor.java b/compiler/frontend/serialization/src/org/jetbrains/jet/descriptors/serialization/descriptors/DeserializedSimpleFunctionDescriptor.java
new file mode 100644
index 00000000000..9702539fb88
--- /dev/null
+++ b/compiler/frontend/serialization/src/org/jetbrains/jet/descriptors/serialization/descriptors/DeserializedSimpleFunctionDescriptor.java
@@ -0,0 +1,118 @@
+/*
+ * Copyright 2010-2013 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.jet.descriptors.serialization.descriptors;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.jet.descriptors.serialization.DescriptorDeserializer;
+import org.jetbrains.jet.descriptors.serialization.Flags;
+import org.jetbrains.jet.descriptors.serialization.NameResolver;
+import org.jetbrains.jet.descriptors.serialization.ProtoBuf;
+import org.jetbrains.jet.lang.descriptors.DeclarationDescriptor;
+import org.jetbrains.jet.lang.descriptors.SimpleFunctionDescriptor;
+import org.jetbrains.jet.lang.descriptors.annotations.AnnotationDescriptor;
+import org.jetbrains.jet.lang.descriptors.impl.FunctionDescriptorImpl;
+import org.jetbrains.jet.lang.descriptors.impl.SimpleFunctionDescriptorImpl;
+import org.jetbrains.jet.lang.resolve.name.Name;
+
+import java.util.List;
+
+public class DeserializedSimpleFunctionDescriptor extends SimpleFunctionDescriptorImpl {
+
+    private final ProtoBuf.Callable functionProto;
+    private final NameResolver nameResolver;
+
+    private DeserializedSimpleFunctionDescriptor(
+            @NotNull DeclarationDescriptor containingDeclaration,
+            @NotNull List<AnnotationDescriptor> annotations,
+            @NotNull Name name,
+            @NotNull Kind kind,
+            @NotNull ProtoBuf.Callable functionProto,
+            @NotNull NameResolver nameResolver
+    ) {
+        super(containingDeclaration, annotations, name, kind);
+        this.functionProto = functionProto;
+        this.nameResolver = nameResolver;
+    }
+
+    private DeserializedSimpleFunctionDescriptor(
+            @NotNull DeclarationDescriptor containingDeclaration,
+            @NotNull SimpleFunctionDescriptor original,
+            @NotNull List<AnnotationDescriptor> annotations,
+            @NotNull Name name,
+            @NotNull Kind kind,
+            @NotNull ProtoBuf.Callable functionProto,
+            @NotNull NameResolver nameResolver) {
+        super(containingDeclaration, original, annotations, name, kind);
+        this.functionProto = functionProto;
+        this.nameResolver = nameResolver;
+    }
+
+    public DeserializedSimpleFunctionDescriptor(
+            @NotNull DeclarationDescriptor containingDeclaration,
+            @NotNull ProtoBuf.Callable functionProto,
+            @NotNull AnnotationDeserializer annotationDeserializer,
+            @NotNull NameResolver nameResolver
+    ) {
+        this(containingDeclaration,
+             DescriptorDeserializer.getAnnotations(containingDeclaration, functionProto, functionProto.getFlags(),
+                                                   AnnotationDeserializer.AnnotatedCallableKind.FUNCTION, annotationDeserializer,
+                                                   nameResolver),
+             nameResolver.getName(functionProto.getName()),
+             DescriptorDeserializer.memberKind(Flags.MEMBER_KIND.get(functionProto.getFlags())),
+             functionProto,
+             nameResolver);
+    }
+
+    @Override
+    protected FunctionDescriptorImpl createSubstitutedCopy(DeclarationDescriptor newOwner, boolean preserveOriginal, Kind kind) {
+        if (preserveOriginal) {
+            return new DeserializedSimpleFunctionDescriptor(
+                    newOwner,
+                    getOriginal(),
+                    getAnnotations(),
+                    getName(),
+                    kind,
+                    functionProto,
+                    nameResolver
+            );
+        }
+        else {
+            return new DeserializedSimpleFunctionDescriptor(
+                    newOwner,
+                    getAnnotations(),
+                    getName(),
+                    kind,
+                    functionProto,
+                    nameResolver
+            );
+        }
+    }
+
+    @NotNull
+    @Override
+    public DeserializedSimpleFunctionDescriptor getOriginal() {
+        return (DeserializedSimpleFunctionDescriptor) super.getOriginal();
+    }
+
+    public ProtoBuf.Callable getFunctionProto() {
+        return functionProto;
+    }
+
+    public NameResolver getNameResolver() {
+        return nameResolver;
+    }
+}
diff --git a/core/descriptors/src/org/jetbrains/jet/lang/descriptors/impl/SimpleFunctionDescriptorImpl.java b/core/descriptors/src/org/jetbrains/jet/lang/descriptors/impl/SimpleFunctionDescriptorImpl.java
index d56f960c95e..daba8bf062b 100644
--- a/core/descriptors/src/org/jetbrains/jet/lang/descriptors/impl/SimpleFunctionDescriptorImpl.java
+++ b/core/descriptors/src/org/jetbrains/jet/lang/descriptors/impl/SimpleFunctionDescriptorImpl.java
@@ -41,7 +41,7 @@ public class SimpleFunctionDescriptorImpl extends FunctionDescriptorImpl impleme
         super(containingDeclaration, annotations, name, kind);
     }
 
-    private SimpleFunctionDescriptorImpl(
+    protected SimpleFunctionDescriptorImpl(
             @NotNull DeclarationDescriptor containingDeclaration,
             @NotNull SimpleFunctionDescriptor original,
             @NotNull List<AnnotationDescriptor> annotations,