Add TestGypXcodeNinja to run tests against the xcode-ninja generator

test/mac/gyptest-ldflags.py

Index: test/mac/gyptest-ldflags.py
diff --git a/test/mac/gyptest-ldflags.py b/test/mac/gyptest-ldflags.py
index 4da40490d3bf8d7f2ebb438cfae543140e0dcba3..77881eb73b772127729e9b1cc178993465817b38 100644
--- a/test/mac/gyptest-ldflags.py
+++ b/test/mac/gyptest-ldflags.py
@@ -16,6 +16,10 @@ import sys
 if sys.platform == 'darwin':
   test = TestGyp.TestGyp(formats=['ninja', 'make', 'xcode'])
 
+  # The xcode-ninja generator fails to generate a working wrapper project

[sdefresne, 2014/09/02 15:13:05]

Same here.

[Tobias, 2014/10/02 18:19:19]

Done.

+  if test.format == 'xcode-ninja':
+    test.skip_test()
+
   CHDIR = 'ldflags'
   test.run_gyp('subdirectory/test.gyp', chdir=CHDIR)