ninja windows: fix expansion of some VS macros

test/ninja/normalize-paths-win/normalize-paths.gyp

+# Copyright (c) 2010 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+{
+  'targets': [
+    {
+      'target_name': 'Some_Target',
+      'type': 'executable',
+      'msvs_settings': {
+        'VCLinkerTool': {
+          'OutputFile': '<(PRODUCT_DIR)/stuff/AnotherName.exe',
+        },
+      },
+      'sources': [
+        'HeLLo.cc',
+        'blOrP.idl',
+      ],
+    },
+    {
+      'target_name': 'second',
+      'type': 'executable',
+      'msvs_settings': {
+        'VCLinkerTool': {
+          'OutputFile': '$(OutDir)\\things\\AnotherName.exe',
+        },
+      },
+      'sources': [
+        'HeLLo.cc',
+      ],
+    },
+    {
+      'target_name': 'action',
+      'type': 'none',
+      'msvs_cygwin_shell': '0',
+      'actions': [
+        {
+          'inputs': [
+            '$(IntDir)\\SomeInput',
+            '$(OutDir)\\SomeOtherInput',
+          ],
+          'outputs': [
+            '<(PRODUCT_DIR)/ReSuLt',
+            '<(SHARED_INTERMEDIATE_DIR)/TempFile',
+            '$(OutDir)\SomethingElse',
+          ],
+          'action_name': 'Test action',
+          # Unfortunately, we can't normalize this field because it's
+          # free-form. Fortunately, ninja doesn't inspect it at all (only the
+          # inputs and outputs) so it's not mandatory.
+          'action': [],
+        },
+      ],
+    },
+  ],
+}