diff --git a/compiler/backend/src/org/jetbrains/jet/codegen/SamCodegenUtil.java b/compiler/backend/src/org/jetbrains/jet/codegen/SamCodegenUtil.java
index df3d6dda2ac..a7bef2b4c20 100644
--- a/compiler/backend/src/org/jetbrains/jet/codegen/SamCodegenUtil.java
+++ b/compiler/backend/src/org/jetbrains/jet/codegen/SamCodegenUtil.java
@@ -27,7 +27,7 @@ public class SamCodegenUtil {
     public static FunctionDescriptor getOriginalIfSamAdapter(@NotNull FunctionDescriptor fun) {
         FunctionDescriptor original = fun.getOriginal();
         if (original instanceof SamAdapterDescriptor<?>) {
-            return ((SamAdapterDescriptor<?>) original).getBaseForSynthesized();
+            return ((SamAdapterDescriptor<?>) original).getOriginForSam();
         }
 
         if (original.getKind() == CallableMemberDescriptor.Kind.FAKE_OVERRIDE) {
diff --git a/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/descriptor/SamAdapterDescriptor.java b/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/descriptor/SamAdapterDescriptor.java
index 00a8d80fd59..6036db0d6e9 100644
--- a/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/descriptor/SamAdapterDescriptor.java
+++ b/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/descriptor/SamAdapterDescriptor.java
@@ -16,9 +16,10 @@
 
 package org.jetbrains.jet.lang.resolve.java.descriptor;
 
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.lang.descriptors.FunctionDescriptor;
-import org.jetbrains.jet.lang.descriptors.SynthesizedCallableMemberDescriptor;
 
-public interface SamAdapterDescriptor<D extends FunctionDescriptor>
-        extends FunctionDescriptor, JavaCallableMemberDescriptor, SynthesizedCallableMemberDescriptor<D> {
+public interface SamAdapterDescriptor<D extends FunctionDescriptor> extends FunctionDescriptor, JavaCallableMemberDescriptor {
+    @NotNull
+    D getOriginForSam();
 }
diff --git a/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/descriptor/SamConstructorDescriptor.java b/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/descriptor/SamConstructorDescriptor.java
index 3fc30d59c3f..5dc293c3cea 100644
--- a/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/descriptor/SamConstructorDescriptor.java
+++ b/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/descriptor/SamConstructorDescriptor.java
@@ -18,13 +18,9 @@ package org.jetbrains.jet.lang.resolve.java.descriptor;
 
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.lang.descriptors.ClassOrPackageFragmentDescriptor;
-import org.jetbrains.jet.lang.descriptors.SourceElement;
-import org.jetbrains.jet.lang.descriptors.SynthesizedCallableMemberDescriptor;
 import org.jetbrains.jet.lang.descriptors.impl.SimpleFunctionDescriptorImpl;
 
-public class SamConstructorDescriptor extends SimpleFunctionDescriptorImpl
-        implements SynthesizedCallableMemberDescriptor<JavaClassDescriptor> {
-    private final JavaClassDescriptor samInterface;
+public class SamConstructorDescriptor extends SimpleFunctionDescriptorImpl {
 
     public SamConstructorDescriptor(
             @NotNull ClassOrPackageFragmentDescriptor containingDeclaration,
@@ -32,12 +28,5 @@ public class SamConstructorDescriptor extends SimpleFunctionDescriptorImpl
     ) {
         super(containingDeclaration, null, samInterface.getAnnotations(), samInterface.getName(),
               Kind.SYNTHESIZED, samInterface.getSource());
-        this.samInterface = samInterface;
-    }
-
-    @NotNull
-    @Override
-    public JavaClassDescriptor getBaseForSynthesized() {
-        return samInterface;
     }
 }
diff --git a/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/sam/SamAdapterConstructorDescriptor.java b/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/sam/SamAdapterConstructorDescriptor.java
index ed820da563f..2a4b0e9513d 100644
--- a/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/sam/SamAdapterConstructorDescriptor.java
+++ b/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/sam/SamAdapterConstructorDescriptor.java
@@ -17,7 +17,6 @@
 package org.jetbrains.jet.lang.resolve.java.sam;
 
 import org.jetbrains.annotations.NotNull;
-import org.jetbrains.jet.lang.descriptors.SourceElement;
 import org.jetbrains.jet.lang.resolve.java.descriptor.JavaConstructorDescriptor;
 import org.jetbrains.jet.lang.resolve.java.descriptor.SamAdapterDescriptor;
 
@@ -34,7 +33,7 @@ import org.jetbrains.jet.lang.resolve.java.descriptor.SamAdapterDescriptor;
 
     @NotNull
     @Override
-    public JavaConstructorDescriptor getBaseForSynthesized() {
+    public JavaConstructorDescriptor getOriginForSam() {
         return declaration;
     }
 }
diff --git a/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/sam/SamAdapterFunctionDescriptor.java b/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/sam/SamAdapterFunctionDescriptor.java
index 8be7f9f90af..041d36cb26d 100644
--- a/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/sam/SamAdapterFunctionDescriptor.java
+++ b/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/sam/SamAdapterFunctionDescriptor.java
@@ -17,7 +17,6 @@
 package org.jetbrains.jet.lang.resolve.java.sam;
 
 import org.jetbrains.annotations.NotNull;
-import org.jetbrains.jet.lang.descriptors.SourceElement;
 import org.jetbrains.jet.lang.resolve.java.descriptor.JavaMethodDescriptor;
 import org.jetbrains.jet.lang.resolve.java.descriptor.SamAdapterDescriptor;
 
@@ -34,7 +33,7 @@ import org.jetbrains.jet.lang.resolve.java.descriptor.SamAdapterDescriptor;
 
     @NotNull
     @Override
-    public JavaMethodDescriptor getBaseForSynthesized() {
+    public JavaMethodDescriptor getOriginForSam() {
         return declaration;
     }
 }
diff --git a/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/sam/SamAdapterOverridabilityCondition.java b/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/sam/SamAdapterOverridabilityCondition.java
index a2a7701a258..fcc021599a9 100644
--- a/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/sam/SamAdapterOverridabilityCondition.java
+++ b/core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/sam/SamAdapterOverridabilityCondition.java
@@ -84,7 +84,7 @@ public class SamAdapterOverridabilityCondition implements ExternalOverridability
             return null;
         }
 
-        SimpleFunctionDescriptor originalDeclarationOfSam = ((SamAdapterFunctionDescriptor) fun).getBaseForSynthesized();
+        SimpleFunctionDescriptor originalDeclarationOfSam = ((SamAdapterFunctionDescriptor) fun).getOriginForSam();
 
         return ((SimpleFunctionDescriptor) originalDeclarationOfSam.substitute(TypeSubstitutor.create(declarationOrSynthesized.ownerType)));
     }
diff --git a/core/descriptors/src/org/jetbrains/jet/lang/descriptors/SynthesizedCallableMemberDescriptor.java b/core/descriptors/src/org/jetbrains/jet/lang/descriptors/SynthesizedCallableMemberDescriptor.java
deleted file mode 100644
index ffc371c98c7..00000000000
--- a/core/descriptors/src/org/jetbrains/jet/lang/descriptors/SynthesizedCallableMemberDescriptor.java
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * 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.lang.descriptors;
-
-import org.jetbrains.annotations.NotNull;
-
-//TODO: drop
-public interface SynthesizedCallableMemberDescriptor<D extends DeclarationDescriptor> extends CallableMemberDescriptor {
-    @NotNull
-    D getBaseForSynthesized();
-}