message: add name and fix numbering
diff: CREATE_P FUNCTION ColId '(' func_arg_list ')' AS a_expr
  {
  PGCreateFunctionStmt *n = makeNode(PGCreateFunctionStmt);
  - n->args = $4;
  - n->function = $6;
  + n->name = $3;
  + n->args = $5;
  + n->function = $8;
  $$ = (PGNode *)n;
  }
  ;
  \ No newline at end of file
  