ninja windows: add flag support for code analysis (aka PREfast)

pylib/gyp/msvs_emulation.py

 # 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.
 
 """
 This module helps emulate Visual Studio 2008 behavior on top of other
 build systems, primarily ninja.
 """
 
 import os
@@ skipping 284 matching lines @@
     cl('DebugInformationFormat',
         map={'1': '7', '3': 'i', '4': 'I'}, prefix='/Z')
     cl('RuntimeTypeInfo', map={'true': '/GR', 'false': '/GR-'})
     cl('EnableFunctionLevelLinking', map={'true': '/Gy', 'false': '/Gy-'})
     cl('MinimalRebuild', map={'true': '/Gm'})
     cl('BufferSecurityCheck', map={'true': '/GS', 'false': '/GS-'})
     cl('BasicRuntimeChecks', map={'1': 's', '2': 'u', '3': '1'}, prefix='/RTC')
     cl('RuntimeLibrary',
         map={'0': 'T', '1': 'Td', '2': 'D', '3': 'Dd'}, prefix='/M')
     cl('ExceptionHandling', map={'1': 'sc','2': 'a'}, prefix='/EH')
+    cl('EnablePREfast', map={'true': '/analyze'})
     cl('AdditionalOptions', prefix='')
     # ninja handles parallelism by itself, don't have the compiler do it too.
     cflags = filter(lambda x: not x.startswith('/MP'), cflags)
     return cflags
 
   def GetPrecompiledHeader(self, config, gyp_to_build_path):
     """Returns an object that handles the generation of precompiled header
     build steps."""
     config = self._RealConfig(config)
     return _PchHelper(self, config, gyp_to_build_path)
@@ skipping 367 matching lines @@
     args = vs.SetupScript(arch)
     args.extend(('&&', 'set'))
     popen = subprocess.Popen(
         args, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
     variables, _ = popen.communicate()
     env = _ExtractImportantEnvironment(variables)
     env_block = _FormatAsEnvironmentBlock(env)
     f = open_out(os.path.join(toplevel_build_dir, 'environment.' + arch), 'wb')
     f.write(env_block)
     f.close()