[cfe-dev] Patch for C++ namespaces

[Argiris Kirtzidis]

Hi,

The attached patch implements parsing of C++ namespaces:

-Added NamespaceDecl for the AST
-Added NamespaceScope flag in the Scope class
-Added checks for name clashes between namespaces and tag/normal 
declarations.

Note that proper name lookup for namespaces is not implemented, (i.e) :

namespace A {
  int x;
}

namespace A {
  void f() { x=0; }
}

I'll add it in a separate patch.


-Argiris
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