msvs: Make sure stdout/stderr from rule commands get logged

pylib/gyp/generator/msvs.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.
 
 import copy
 import ntpath
 import os
 import posixpath
 import re
 import subprocess
@@ skipping 2327 matching lines @@
         {'Condition': "'@(%s)' != '' and '%%(%s.ExcludedFromBuild)' != "
          "'true'" % (rule.tlog, rule.tlog),
          'File': '$(IntDir)$(ProjectName).read.1.tlog',
          'Lines': "^%%(%s.Source);%%(%s.Inputs)" % (rule.tlog, rule.tlog)
         }
     ]
     command_and_input_section = [
         rule_name,
         {'Condition': "'@(%s)' != '' and '%%(%s.ExcludedFromBuild)' != "
          "'true'" % (rule_name, rule_name),
+         'EchoOff': 'true',
+         'StandardOutputImportance': 'High',
+         'StandardErrorImportance': 'High',
          'CommandLineTemplate': '%%(%s.CommandLineTemplate)' % rule_name,
          'AdditionalOptions': '%%(%s.AdditionalOptions)' % rule_name,
          'Inputs': rule_inputs
         }
     ]
     content.extend([
         ['Target',
          {'Name': rule.target_name,
           'BeforeTargets': '$(%s)' % rule.before_targets,
           'AfterTargets': '$(%s)' % rule.after_targets,
@@ skipping 1070 matching lines @@
   action_spec.extend(
       # TODO(jeanluc) 'Document' for all or just if as_sources?
       [['FileType', 'Document'],
        ['Command', command],
        ['Message', description],
        ['Outputs', outputs]
       ])
   if additional_inputs:
     action_spec.append(['AdditionalInputs', additional_inputs])
   actions_spec.append(action_spec)