Fix classpath order for integration tests

Test classes need to come first because of how TB3TestLocator is
implemented.

Change-Id: I912e7a6e4743053ce01567870754e2b9ea30b0f1

uitest/integration_tests.xml

@@ -40,9 +40,9 @@
     <ivy:resolve file="ivy.xml" conf="build, build-provided" />
     <ivy:cachepath pathid="classpath.tb3.lib" conf="build, build-provided" />
     <path id="classpath.tb3">
+        <path location="target/test-classes" />
         <path refid="classpath.tb3.lib" />
         <path location="target/classes" />
-        <path location="target/test-classes" />
     </path>
 
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