clang/win: Enable -Wunused-local-typedef

third_party/yasm/yasm.gyp

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # The yasm build process creates a slew of small C subprograms that
 # dynamically generate files at various point in the build process.  This makes
 # the build integration moderately complex.
 #
 # There are three classes of dynamically generated files:
 #   1) C source files that should be included in the build (eg., lc3bid.c)
@@ skipping 63 matching lines @@
         'genperf',
         'genperf_libs',
         'generate_files',  # Needed to generate gperf and instruction files.
         'genstring',
         're2c',
       ],
       'variables': {
         'clang_warning_flags': [
           # yasm passes a `const elf_machine_sym*` through `void*`.
           '-Wno-incompatible-pointer-types',
+          # reg3264type in x86expr.c is unused.
+          '-Wno-unused-local-typedef',
         ],
       },
       'conditions': [
         ['OS=="win"', {
           # As of VS 2013 Update 3, building this project with /analyze hits an
           # internal compiler error on elf-x86-amd64.c in release builds with
           # the amd64_x86 compiler. This halts the build and prevents subsequent
           # analysis. Therefore, /analyze is disabled for this project. See this
           # bug for details:
           # https://connect.microsoft.com/VisualStudio/feedback/details/1014799/internal-compiler-error-when-using-analyze
@@ skipping 480 matching lines @@
       'include_dirs': [
         '<@(yasm_include_dirs)',
 
       ],
       'cflags': [
         '-std=gnu99',
       ],
     },
   ],
 }