Mention 'wchar_t' at the C++ status page.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54595 91177308-0d34-0410-b5e6-96231b3b80d8

www/cxx_status.html

@@ -41,6 +41,11 @@ actually produce LLVM code for the feature with the -emit-llvm option.
     <td>bool x; </td>
     <td>Full support.</td>
   </tr>
+  <tr>
+    <td>wchar_t type </td>
+    <td>wchar_t x; </td>
+    <td>Parser and Sema support in, partial Codegen support.</td>
+  </tr>
   <tr>
     <td>Named Casts </td>
     <td>static_cast&lt;int&gt;(x)</td>