Move json to lib/json/{json.dart, json_frog.dart}

editor/tools/features/com.google.dart.tools.deploy.feature_releng/build_rcp.xml

 <!--
 This build script will build the Dart RCP and Dart update site.  
 
 This script will setup the PDE build structure and then call into the PDE
 build system.  The PDE build system has to run under Eclipse.
 -->
 <project name="build_dart" default="build_rcp">
     
     <import file="build-common.xml" />
 
@@ skipping 226 matching lines @@
         <copyDartLib name="coreimpl" dir="${build.tmp}/lib/core-dartc" libfile="corelib_impl.dart"/>
         
         <!-- dart:dom -->
         <copyDartLib name="dom" dir="${build.source.root}/client/dom"/>
         
         <!-- dart:html -->
         <copyDartLib name="html" dir="${build.source.root}/client/html"/>
         <copyDartLib name="htmlimpl" dir="${build.source.root}/client/html"/>
         
         <!-- dart:json -->
-        <copyDartLib name="json" dir="${build.source.root}/client/json"/>
+        <copyDartLib name="json" dir="${build.source.root}/lib/json"/>
         
         <!-- dart:builtin -->
         <copy todir="${libraries.out.dir}/builtin">
             <fileset dir="${build.source.root}/runtime/bin" includes="builtin.dart"/>
         </copy>
         
         <!-- dart:nativewrappers -->
         <mkdir dir="${libraries.out.dir}/nativewrappers"/>
         <echo file="${libraries.out.dir}/nativewrappers/nativewrappers.dart">
 #library("nativewrappers");
@@ skipping 369 matching lines @@
         </copy>
     </target>
 
     <!-- - - - - - - - - - - - - - - - - - 
           target: doDeploy_rcp                      
          - - - - - - - - - - - - - - - - - -->
     <target name="doDeploy_rcp" depends="init, setupBuild, doBuild_rcp, package_rcp">
     </target>
 
 </project>