Union grammar = (Union)((MetaGrammar)(gram.walk(tree, tree.numChildren()-1))).done("s");
return new TestCase(input, output, grammar, tib, jav);
} else if ("ts".equals(tree.head())) return walk(tree, 0);
Union grammar = (Union)((MetaGrammar)(gram.walk(tree, tree.numChildren()-1))).done("s");
return new TestCase(input, output, grammar, tib, jav);
} else if ("ts".equals(tree.head())) return walk(tree, 0);