Fix remaining warnings for -Wmissing-braces and enable on win clang.

third_party/cld_2/cld_2.gyp

Index: third_party/cld_2/cld_2.gyp
diff --git a/third_party/cld_2/cld_2.gyp b/third_party/cld_2/cld_2.gyp
index 96bd9ff642f9b960a186fc0d4ac551f42b8530df..e07385bc07dbc56a8b2b3771dd39b864426254ea 100644
--- a/third_party/cld_2/cld_2.gyp
+++ b/third_party/cld_2/cld_2.gyp
@@ -124,6 +124,12 @@
         }],
       ],
       'defines': ['CLD2_DYNAMIC_MODE'],
+      'variables': {
+        'clang_warning_flags': [
+          # The generated files don't have braces around subobject initializers.
+          '-Wno-missing-braces',
+        ],
+      },
     },
 
     {
@@ -168,6 +174,12 @@
           'sources+': ['<@(cld2_data_largest_sources)']
         }],
       ],
+      'variables': {
+        'clang_warning_flags': [
+          # The generated files don't have braces around subobject initializers.
+          '-Wno-missing-braces',
+        ],
+      },
     },
 
     {