roll clang 182481:184830

New stuff:
- can parse gcc 4.7+ headers in gnu++11 mode
- -Wheader-guards
- -Wlogical-not-parentheses
- Fixes http://llvm.org/PR15998

This is also the first time these binaries were built on precise (and as a
consequence won't run on lucid).

BUG=255201
R=hans@chromium.org

Review URL: https://codereview.chromium.org/18124002

git-svn-id: http://src.chromium.org/svn/trunk/src/build@209703 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

common.gypi

@@ -3129,6 +3129,11 @@
               # suffix. However, this is used heavily in NaCl code, so disable
               # the warning for now.
               '-Wno-reserved-user-defined-literal',
+
+              # Clang considers the `register` keyword as deprecated, but e.g.
+              # code generated by flex (used in angle) contains that keyword.
+              # http://crbug.com/255186
+              '-Wno-deprecated-register',
             ],
             'cflags_cc': [
               # See the comment in the Mac section for what it takes to move
@@ -3826,6 +3831,11 @@
 
                 # Warns when a const char[] is converted to bool.
                 '-Wstring-conversion',
+
+                # Clang considers the `register` keyword as deprecated, but e.g.
+                # code generated by flex (used in angle) contains that keyword.
+                # http://crbug.com/255186
+                '-Wno-deprecated-register',
               ],
               'OTHER_CPLUSPLUSFLAGS': [
                 # gnu++11 instead of c++11 is needed because some code uses

linux/system.gyp

@@ -241,6 +241,15 @@
                 ],
               },
             }],
+            ['use_openssl==0 and clang==1', {
+              'direct_dependent_settings': {
+                'cflags': [
+                  # There is a broken header guard in /usr/include/nss/secmod.h:
+                  # https://bugzilla.mozilla.org/show_bug.cgi?id=884072
+                  '-Wno-header-guard',
+                ],
+              },
+            }],
           ]
         }],
       ],