Add TestGypXcodeNinja to run tests against the xcode-ninja generator

test/generator-output/gyptest-rules.py

Index: test/generator-output/gyptest-rules.py
diff --git a/test/generator-output/gyptest-rules.py b/test/generator-output/gyptest-rules.py
index b95e005c2d6e24f3289fe89f911b8faab9d5934d..7352668b7e15e5b0669bb81ebadc17e27efce7c7 100755
--- a/test/generator-output/gyptest-rules.py
+++ b/test/generator-output/gyptest-rules.py
@@ -13,11 +13,15 @@ import TestGyp
 # Android doesn't support --generator-output.
 test = TestGyp.TestGyp(formats=['!android'])
 
+# Bug: xcode-ninja doesn't respect --generator-output
+# cf. https://code.google.com/p/gyp/issues/detail?id=442
+if test.format == 'xcode-ninja':
+  test.skip_test()
+
 test.writable(test.workpath('rules'), False)
 
 test.run_gyp('rules.gyp',
              '--generator-output=' + test.workpath('gypfiles'),
-             '-G', 'xcode_ninja_target_pattern=^pull_in_all_actions$',
              chdir='rules')
 
 test.writable(test.workpath('rules'), True)