Move serialization.java module to core/

Remove unused dependency from frontend.java

.idea/modules.xml

@@ -31,7 +31,7 @@
       <module fileurl="file://$PROJECT_DIR$/compiler/preloader/preloader.iml" filepath="$PROJECT_DIR$/compiler/preloader/preloader.iml" group="compiler/cli" />
       <module fileurl="file://$PROJECT_DIR$/runtime/runtime.iml" filepath="$PROJECT_DIR$/runtime/runtime.iml" />
       <module fileurl="file://$PROJECT_DIR$/compiler/frontend/serialization/serialization.iml" filepath="$PROJECT_DIR$/compiler/frontend/serialization/serialization.iml" group="compiler" />
-      <module fileurl="file://$PROJECT_DIR$/compiler/frontend.java/serialization.java/serialization.java.iml" filepath="$PROJECT_DIR$/compiler/frontend.java/serialization.java/serialization.java.iml" group="compiler/java" />
+      <module fileurl="file://$PROJECT_DIR$/core/serialization.java/serialization.java.iml" filepath="$PROJECT_DIR$/core/serialization.java/serialization.java.iml" group="compiler/java" />
       <module fileurl="file://$PROJECT_DIR$/compiler/util/util.iml" filepath="$PROJECT_DIR$/compiler/util/util.iml" />
     </modules>
   </component>

build.xml

@@ -27,7 +27,7 @@
         <include name="compiler/frontend/serialization/src"/>
         <include name="core/descriptor.loader.java/src"/>
         <include name="compiler/frontend.java/src"/>
-        <include name="compiler/frontend.java/serialization.java/src"/>
+        <include name="core/serialization.java/src"/>
         <include name="compiler/backend/src"/>
         <include name="compiler/cli/src"/>
         <include name="compiler/cli/cli-common/src"/>
@@ -46,6 +46,7 @@
         <include name="serialization/**"/>
         <include name="descriptor.loader.java/**"/>
         <include name="frontend.java/**"/>
+        <include name="serialization.java/**"/>
         <include name="backend/**"/>
         <include name="cli/**"/>
         <include name="cli-common/**"/>