Parsing of namespaces:

-NamespaceDecl for the AST
-Checks for name clashes between namespaces and tag/normal declarations.

This commit doesn't implement proper name lookup for namespaces.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50321 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index e3298f3..edd9284 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -128,6 +128,8 @@
     return Diag(Loc, diag::err_unexpected_typedef, II.getName());
   if (isa<ObjCInterfaceDecl>(D))
     return Diag(Loc, diag::err_unexpected_interface, II.getName());
+  if (isa<NamespaceDecl>(D))
+    return Diag(Loc, diag::err_unexpected_namespace, II.getName());
 
   assert(0 && "Invalid decl");
   abort();
@@ -2313,3 +2315,5 @@
   return isInvalid;
 }
 
+
+