Add missing dependencies in build.xml files.

Change-Id: I601a74540321b98f6984a7fb5e71f8fc4ef575d9

dev/build.xml

diff --git a/dev/build.xml b/dev/build.xml
index 9c13138..aff5977 100755
--- a/dev/build.xml
+++ b/dev/build.xml
@@ -61,6 +61,7 @@
             location="${gwt.tools.lib}/streamhtmlparser/streamhtmlparser-jsilver-r10/streamhtmlparser-jsilver-r10-1.5-rebased.jar"/>
         <pathelement location="${gwt.build.lib}/gwt-dev-${build.host.platform}.jar"/>
         <pathelement location="${alldeps.jar}"/>
+        <pathelement location="${gwt.tools.lib}/jsinterop/jsinterop-annotations-2.0.0.jar"/>
       </classpath>
     </gwt.javac>
 
@@ -340,6 +341,7 @@
         <!-- CompilerTest needs the dependecies to compile a project that uses UiBinder. -->
 	<pathelement location="${gwt.tools.lib}/streamhtmlparser/streamhtmlparser-jsilver-r10/streamhtmlparser-jsilver-r10-1.5-rebased.jar"/>
         <pathelement location="${gwt.tools.lib}/gss/2015-11-04/closure-stylesheets-library-20151104-rebased.jar"/>
+       <pathelement  location="${gwt.tools.lib}/jsinterop/jsinterop-annotations-2.0.0.jar"/>
       </extraclasspaths>
     </gwt.junit>
   </target>

user/build.xml

diff --git a/user/build.xml b/user/build.xml
index d164639..3d67ae8 100755
--- a/user/build.xml
+++ b/user/build.xml
@@ -94,6 +94,7 @@
     <pathelement location="${gwt.tools.lib}/testng/testng-5.14.1-nojunit.jar"/>
     <pathelement location="${gwt.dev.jar}"/>
     <pathelement location="${gwt.tools.lib}/gss/2015-11-04/closure-stylesheets-library-20151104-rebased.jar"/>
+    <pathelement location="${gwt.tools.lib}/jsinterop/jsinterop-annotations-2.0.0.jar"/>
   </path>
 
   <target name="compile" description="Compile all class files"