diff --git a/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/ConstructorDescriptorImpl.java b/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/ConstructorDescriptorImpl.java
index 014da666a95..6275222ef9a 100644
--- a/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/ConstructorDescriptorImpl.java
+++ b/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/ConstructorDescriptorImpl.java
@@ -24,7 +24,7 @@ public class ConstructorDescriptorImpl extends FunctionDescriptorImpl implements
     }
 
     public ConstructorDescriptorImpl(@NotNull ConstructorDescriptor original, @NotNull List<AnnotationDescriptor> annotations, boolean isPrimary) {
-        super(original.getContainingDeclaration(), original, annotations, "<init>");
+        super(original, annotations, "<init>");
         this.isPrimary = isPrimary;
     }
 
diff --git a/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/FunctionDescriptorImpl.java b/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/FunctionDescriptorImpl.java
index 6f2129a2d7b..83758f56700 100644
--- a/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/FunctionDescriptorImpl.java
+++ b/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/FunctionDescriptorImpl.java
@@ -43,11 +43,10 @@ public abstract class FunctionDescriptorImpl extends DeclarationDescriptorImpl i
     }
 
     protected FunctionDescriptorImpl(
-            @NotNull DeclarationDescriptor containigDeclaration,
             @NotNull FunctionDescriptor original,
             @NotNull List<AnnotationDescriptor> annotations,
             @NotNull String name) {
-        super(containigDeclaration, annotations, name);
+        super(original.getContainingDeclaration(), annotations, name);
         this.original = original;
     }
 
diff --git a/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/NamedFunctionDescriptorImpl.java b/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/NamedFunctionDescriptorImpl.java
index 2bcd2613d4c..842fde848c7 100644
--- a/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/NamedFunctionDescriptorImpl.java
+++ b/compiler/frontend/src/org/jetbrains/jet/lang/descriptors/NamedFunctionDescriptorImpl.java
@@ -16,20 +16,13 @@ public class NamedFunctionDescriptorImpl extends FunctionDescriptorImpl implemen
         super(containingDeclaration, annotations, name);
     }
 
-    private NamedFunctionDescriptorImpl(@NotNull DeclarationDescriptor containingDeclaration, @NotNull NamedFunctionDescriptor original, @NotNull List<AnnotationDescriptor> annotations, @NotNull String name) {
-        super(containingDeclaration, original, annotations, name);
-    }
-
-    @NotNull
-    @Override
-    public NamedFunctionDescriptor getOriginal() {
-        return (NamedFunctionDescriptor) super.getOriginal();
+    private NamedFunctionDescriptorImpl(@NotNull NamedFunctionDescriptor original, @NotNull List<AnnotationDescriptor> annotations, @NotNull String name) {
+        super(original, annotations, name);
     }
 
     @Override
     protected FunctionDescriptorImpl createSubstitutedCopy() {
         return new NamedFunctionDescriptorImpl(
-                getContainingDeclaration(),
                 this,
                 // TODO : safeSubstitute
                 getAnnotations(),
@@ -39,7 +32,7 @@ public class NamedFunctionDescriptorImpl extends FunctionDescriptorImpl implemen
     @NotNull
     @Override
     public NamedFunctionDescriptor copy(DeclarationDescriptor newOwner, boolean makeNonAbstract) {
-        NamedFunctionDescriptorImpl copy = new NamedFunctionDescriptorImpl(newOwner, getOriginal(), Lists.newArrayList(getAnnotations()), getName());
+        NamedFunctionDescriptorImpl copy = new NamedFunctionDescriptorImpl(newOwner, Lists.newArrayList(getAnnotations()), getName());
         copy.initialize(
                 getReceiverParameter().exists() ? getReceiverParameter().getType() : null,
                 expectedThisObject,