Don't support spaces in command, simplify msvs_emulation

test/win/gyptest-command-quote.py

 #!/usr/bin/env python
 
 # Copyright (c) 2012 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.
 
 """
 
 Make sure the program in a command can be a called batch file, or an
 application in the path. Specifically, this means not quoting something like
 "call x.bat", lest the shell look for a program named "call x.bat", rather
 than calling "x.bat".
 """
 
 import TestGyp
 
 import sys
 
 if sys.platform == 'win32':
   test = TestGyp.TestGyp(formats=['msvs', 'ninja'])
   CHDIR = 'command-quote'
   test.run_gyp('command-quote.gyp', chdir=CHDIR)
-  test.build('command-quote.gyp', test.ALL, chdir=CHDIR)
+
+  test.build('command-quote.gyp', 'test_batch', chdir=CHDIR)
+  test.build('command-quote.gyp', 'test_call_separate', chdir=CHDIR)
+
+  # We confirm that this fails because other generators don't handle spaces in
+  # inputs so it's preferable to not have it work here.
+  test.build('command-quote.gyp', 'test_with_spaces', chdir=CHDIR, status=1)
+
   test.pass_test()