homogenize msvs and ninja library_dir and libraries settings for Windows

test/library_dirs/gyptest-library-dirs.py

Index: test/library_dirs/gyptest-library-dirs.py
diff --git a/test/library_dirs/gyptest-library-dirs.py b/test/library_dirs/gyptest-library-dirs.py
index a201d5978e6dfc797383a742d0e52c27f8777ae6..5edd6e757918e62d2b579723bbd5ce0a1d713dd2 100644
--- a/test/library_dirs/gyptest-library-dirs.py
+++ b/test/library_dirs/gyptest-library-dirs.py
@@ -8,6 +8,8 @@
 Verifies library_dirs (in link_settings) are properly found.
 """
 
+import sys
+
 import TestGyp
 
 test = TestGyp.TestGyp(formats=['!android'])
@@ -29,5 +31,20 @@ expect = """Hello world
 test.run_built_executable(
     'libraries-search-path-test', chdir='subdir', stdout=expect)
 
+if sys.platform in ('win32', 'cygwin'):
+  test.run_gyp('test-win.gyp',
+               '-D',
+               'abs_path_to_secret_library_location={0}'.format(lib_dir),
+               chdir='subdir')
+
+  test.build('test.gyp', 'mylib', chdir='subdir')
+  test.build('test-win.gyp',
+             'libraries-search-path-test-lib-suffix',
+             chdir='subdir')
+
+  test.run_built_executable(
+        'libraries-search-path-test-lib-suffix', chdir='subdir', stdout=expect)
+
+
 test.pass_test()
 test.cleanup()