[testing] Fixing running older tests.

the new formatter is nice, but needed to be compile with 1.6, otherwise running junit on older VMs doesn't work.

buildScripts/ivy.xml

@@ -39,6 +39,7 @@
 		<dependency org="org.projectlombok" name="lombok.patcher" rev="0.40" conf="build,stripe->default" />
 		<dependency org="zwitserloot.com" name="cmdreader" rev="1.2" conf="build,stripe->runtime" />
 		<dependency org="org.apache.ant" name="ant" rev="1.10.5" conf="build->default" />
+		<dependency org="org.apache.ant" name="ant-junit" rev="1.10.5" conf="build->default" />
 		
 		<!-- test deps -->
 		<dependency org="junit" name="junit" rev="4.8.2" conf="test->default; sources" />

buildScripts/tests.ant.xml

@@ -26,9 +26,10 @@ This buildfile is part of projectlombok.org. It takes care of compiling and runn
 	
 	<target name="test.formatter.compile" depends="deps">
 		<mkdir dir="build/ant" />
-		<javac includeantruntime="true" srcdir="src/support" includes="**/SimpleTestFormatter.java" destdir="build/ant">
+		<ivy:compile ecj="true" srcdir="src/support" includes="**/SimpleTestFormatter.java" destdir="build/ant" source="1.6" target="1.6">
+			<classpath refid="cp.build" />
 			<classpath refid="cp.test" />
-		</javac>
+		</ivy:compile>
 	</target>
 	
 	<target name="test.compile" depends="deps, compile" description="compiles the tests" unless="skip.tests">