Simplify class object naming madness

- get rid of DescriptorNamer, always use descriptor.getName() instead
- delete AbstractClassResolver.getClassObjectName(), always use
  "<class-object-for-...>", except for the case of built-ins serialization
  (class object names should be replaced by "object" when writing files with
  serialized data for built-ins)
- delete NestedClassResolver.resolveClassObject(), always use the other method
  of this class instead

compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/resolver/DeserializedDescriptorResolver.java

@@ -32,7 +32,6 @@ import org.jetbrains.jet.lang.descriptors.ClassOrNamespaceDescriptor;
 import org.jetbrains.jet.lang.descriptors.DeclarationDescriptor;
 import org.jetbrains.jet.lang.descriptors.NamespaceDescriptor;
 import org.jetbrains.jet.lang.descriptors.annotations.AnnotationDescriptor;
-import org.jetbrains.jet.lang.resolve.DescriptorUtils;
 import org.jetbrains.jet.lang.resolve.java.JvmAbi;
 import org.jetbrains.jet.lang.resolve.java.JvmStdlibNames;
 import org.jetbrains.jet.lang.resolve.lazy.storage.LockBasedStorageManager;
@@ -268,7 +267,7 @@ public final class DeserializedDescriptorResolver {
         @NotNull
         @Override
         protected ClassId getClassId(@NotNull ClassDescriptor classDescriptor) {
-            return ClassSerializationUtil.getClassId(classDescriptor, DescriptorNamer.DEFAULT);
+            return ClassSerializationUtil.getClassId(classDescriptor);
         }
 
         @Nullable
@@ -277,12 +276,6 @@ public final class DeserializedDescriptorResolver {
             return javaClassResolver.resolveClass(kotlinFqNameToJavaFqName(classId.asSingleFqName()));
         }
 
-        @NotNull
-        @Override
-        protected Name getClassObjectName(@NotNull ClassDescriptor outerClass) {
-            return DescriptorUtils.getClassObjectName(outerClass.getName());
-        }
-
         @Override
         protected void classDescriptorCreated(@NotNull ClassDescriptor classDescriptor) {
             //nothing to do here