Add CXCursor support for C++ namespaces.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103211 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CXCursor.cpp b/tools/libclang/CXCursor.cpp
index c8eb482..df20d26 100644
--- a/tools/libclang/CXCursor.cpp
+++ b/tools/libclang/CXCursor.cpp
@@ -56,6 +56,7 @@
     case Decl::ParmVar:            return CXCursor_ParmDecl;
     case Decl::Typedef:            return CXCursor_TypedefDecl;
     case Decl::Var:                return CXCursor_VarDecl;
+    case Decl::Namespace:          return CXCursor_Namespace;
     default:
       if (TagDecl *TD = dyn_cast<TagDecl>(D)) {
         switch (TD->getTagKind()) {