Output A_CONST types as strings intead of enum values.
Output A_CONST types as strings intead of enum values.

ranxian/peloton-frontend,lfittl/libpg_query,ranxian/peloton-frontend,ranxian/peloton-frontend,ranxian/peloton-frontend,ranxian/peloton-frontend,lfittl/libpg_query,lfittl/libpg_query