Add TestGypXcodeNinja to run tests against the xcode-ninja generator

test/mac/gyptest-debuginfo.py

Index: test/mac/gyptest-debuginfo.py
diff --git a/test/mac/gyptest-debuginfo.py b/test/mac/gyptest-debuginfo.py
index a0e9438e2a6bfd93fa78b15a7f40741c01f65f18..06bb33caec33b77592beef56f1915c48df38c3b8 100755
--- a/test/mac/gyptest-debuginfo.py
+++ b/test/mac/gyptest-debuginfo.py
@@ -15,7 +15,9 @@ import sys
 if sys.platform == 'darwin':
   test = TestGyp.TestGyp(formats=['ninja', 'make', 'xcode'])
 
-  test.run_gyp('test.gyp', chdir='debuginfo')
+  test.run_gyp('test.gyp',
+               '-G', 'xcode_ninja_target_pattern=^.*$',
+               chdir='debuginfo')
 
   test.build('test.gyp', test.ALL, chdir='debuginfo')