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/test/Sema/cxx-namespace.cpp b/test/Sema/cxx-namespace.cpp
new file mode 100644
index 0000000..c7303e3
--- /dev/null
+++ b/test/Sema/cxx-namespace.cpp
@@ -0,0 +1,15 @@
+// RUN: clang -fsyntax-only -verify %s 

+namespace A { // expected-error {{error: previous definition is here}}

+  int A;

+  void f() { A = 0; }

+}

+

+void f() { A = 0; } // expected-error {{error: unexpected namespace name 'A': expected expression}}

+int A; // expected-error {{error: redefinition of 'A' as different kind of symbol}}

+class A; // expected-error {{error: redefinition of 'A' as different kind of symbol}}

+

+class B; // expected-error {{error: previous definition is here}}

+namespace B {} // expected-error {{error: redefinition of 'B' as different kind of symbol}}

+

+void C(); // expected-error {{error: previous definition is here}}

+namespace C {} // expected-error {{error: redefinition of 'C' as different kind of symbol}}