decl.c (shadow_tag): Give error for typedef-ing built-in types Fixes g++/14837

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Thu Feb 12 12:46:51 1998  Benjamin Kosnik  <bkoz@rhino.cygnus.com>
	* decl.c (shadow_tag): Give error for typedef-ing built-in types
Fixes g++/14837

From-SVN: r17881

gcc/cp/decl.c

@@ -5919,7 +5919,7 @@ shadow_tag (declspecs)
 	}
 
       if (found_tag == 0)
-	pedwarn ("abstract declarator used as declaration");
+	cp_error ("abstract declarator used as declaration");
       else if (found_tag > 1)
 	pedwarn ("multiple types in one declaration");
     }