fix nested namespace issue reported by Charlie

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@8863 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/namespace_nested.i

@@ -60,3 +60,38 @@ namespace oss
 {
   %template(hi1_hi0) hi1<hello::Hi0 >;
 }
+
+
+%rename(MyFoo) geos::algorithm::Foo;
+
+%inline 
+{
+  namespace geos {
+    namespace algorithm {
+      class Foo 
+      {
+      };
+    }
+    
+    namespace planargraph { // geos.planargraph
+      namespace algorithm { // geos.planargraph.algorithm
+
+	class Foo {
+	public:
+	  typedef int size_type;
+	};
+      }
+      namespace algorithm { // geos.planargraph.algorithm
+
+	class ConnectedSubgraphFinder : public Foo {
+	public:
+	  ConnectedSubgraphFinder(size_type)
+	  {
+	  }
+	  
+	};
+      }
+    }
+  }
+}
+

Source/CParse/parser.y

@@ -3811,7 +3811,7 @@ cpp_namespace_decl : NAMESPACE idcolon LBRACE {
                 Hash *h;
                 $1 = Swig_symbol_current();
 		h = Swig_symbol_clookup($2,0);
-		if (h && (Strcmp(nodeType(h),"namespace") == 0)) {
+		if (h && ($1 == Getattr(h,k_symsymtab)) && (Strcmp(nodeType(h),"namespace") == 0)) {
 		  if (Getattr(h,k_alias)) {
 		    h = Getattr(h,k_namespace);
 		    Swig_warning(WARN_PARSE_NAMESPACE_ALIAS, cparse_file, cparse_line, "Namespace alias '%s' not allowed here. Assuming '%s'\n",