Add TestGypXcodeNinja to run tests against the xcode-ninja generator

test/actions-subdir/gyptest-action.py

Index: test/actions-subdir/gyptest-action.py
diff --git a/test/actions-subdir/gyptest-action.py b/test/actions-subdir/gyptest-action.py
index 09cfef1893d56f17dbaa35bbe59ddc0dd1db468f..864013e17a218b25bdc1bcf5c4cbda0ff1b6d64e 100755
--- a/test/actions-subdir/gyptest-action.py
+++ b/test/actions-subdir/gyptest-action.py
@@ -13,7 +13,9 @@ import TestGyp
 # TODO fix this for xcode: http://code.google.com/p/gyp/issues/detail?id=88
 test = TestGyp.TestGyp(formats=['!xcode'])
 
-test.run_gyp('none.gyp', chdir='src')
+test.run_gyp('none.gyp',
+             '-G', 'xcode_ninja_target_pattern=^file$',
+             chdir='src')
 
 test.build('none.gyp', test.ALL, chdir='src')