Add TestGypXcodeNinja to run tests against the xcode-ninja generator

test/mac/gyptest-framework.py

Index: test/mac/gyptest-framework.py
diff --git a/test/mac/gyptest-framework.py b/test/mac/gyptest-framework.py
index 401bd98d2fba45452856327fa61c451ac1288ba8..8f43cd17939f50fd9106db77a5bc0c99b8686aab 100755
--- a/test/mac/gyptest-framework.py
+++ b/test/mac/gyptest-framework.py
@@ -26,7 +26,9 @@ def ls(path):
 if sys.platform == 'darwin':
   test = TestGyp.TestGyp(formats=['ninja', 'make', 'xcode'])
 
-  test.run_gyp('framework.gyp', chdir='framework')
+  test.run_gyp('framework.gyp',
+               '-G', 'xcode_ninja_target_pattern=^test_framework$',
+               chdir='framework')
 
   test.build('framework.gyp', 'test_framework', chdir='framework')