Enable disabled gwtui tests

a283507bcc disabled EditIteratorTest due
to gwt-test-utils uncompatibility with new GWT 2.6 release.

After fixing the compatibility problem in [1] the tests can be enabled
again.

[1] https://github.com/gwt-test-utils/gwt-test-utils/issues/62

Change-Id: I1f93e6422a1ae60d66f4d8b4abac23b6a1acb4f9

gerrit-gwtui/src/test/java/com/google/gerrit/client/diff/EditIteratorTest.java

@@ -30,7 +30,6 @@ import org.junit.Test;
 
 /** Unit tests for EditIterator */
 @GwtModule("com.google.gerrit.GerritGwtUI")
-@Ignore
 public class EditIteratorTest extends GwtTest {
   private JsArrayString lines;
 

lib/gwt/BUCK

@@ -40,8 +40,8 @@ python_binary(
 
 maven_jar(
   name = 'gwt-test-utils',
-  id = 'com.googlecode.gwt-test-utils:gwt-test-utils:0.45',
+  id = 'com.googlecode.gwt-test-utils:gwt-test-utils:0.47',
-  sha1 = 'ed16fa85defc685802e11cc61f8bc70454412fdb',
+  sha1 = '284749ed37d8034bac05e374070c09cce88db540',
   license = 'Apache2.0',
   deps = [
     ':javassist',
@@ -52,8 +52,8 @@ maven_jar(
 
 maven_jar(
   name = 'javassist',
-  id = 'org.javassist:javassist:3.16.1-GA',
+  id = 'org.javassist:javassist:3.18.1-GA',
-  sha1 = '315891b371395271977af518d4db5cee1a0bc9bf',
+  sha1 = 'd9a09f7732226af26bf99f19e2cffe0ae219db5b',
   license = 'Apache2.0',
   visibility = [],
 )