Command line interface of AstNodeToScriptAdapter.groovy don't works

$ groovy -e 'groovy.inspect.swingui.AstNodeToScriptAdapter.main(args)' a.groovy  1
Caught: groovy.lang.MissingMethodException: No signature of method: static org.codehaus.groovy.control.CompilePhase.fromPhaseNumber() is applicable for argument types: (java.lang.String) values: [1]
Possible solutions: fromPhaseNumber(int), getPhaseNumber()
	at groovy.inspect.swingui.AstNodeToScriptAdapter.main(AstNodeToScriptAdapter.groovy:56)
	at script_from_command_line.run(script_from_command_line:1)

$ svn diff AstNodeToScriptAdapter.groovy
Index: AstNodeToScriptAdapter.groovy
===================================================================
--- AstNodeToScriptAdapter.groovy	(revision 22473)
+++ AstNodeToScriptAdapter.groovy	(working copy)
@@ -52,7 +52,7 @@
 and [compilephase] is a valid Integer based org.codehaus.groovy.control.CompilePhase"""
         } else {
             def file = new File((String) args[0])
-            def phase = CompilePhase.fromPhaseNumber(args[1])
+            def phase = CompilePhase.fromPhaseNumber(args[1] as int)
             if (!file.exists()) {
                 println "File ${args[0]} cannot be found."
             } else if (phase == null) {