don't convert "end" token to "__end__" for indexing * lex.ll (octave_base_lexer::handle_identifier): Don't translate "end" to "__end__". * pt-arg-list.cc (Fend): Rename from F__end__. * pt-id.h (tree_identifier::has_magic_end): Recognize "end" instead of "__end__". * pt-idx.cc: Refer to "end" in comment instead of "__end__". * variables.cc (symbol_exist): Return early if keyword is found. * resource-manager.cc (resource_manager::octave_keywords): Delete __end__ from the list.

--- a/libinterp/corefcn/variables.cc
+++ b/libinterp/corefcn/variables.cc
@@ -401,6 +401,8 @@
       struct_elts = name.substr (pos+1);
       symbol_name = name.substr (0, pos);
     }
+  else if (is_keyword (symbol_name))
+    return retval;
 
   // We shouldn't need to look in the global symbol table, since any
   // name that is visible in the current scope will be in the local