Array_expansion.Eval reg_error : Expr.var_i -> string -> Compiler_util.pp_error_locval reg_error_expr : Expr.pexpr -> string -> Compiler_util.pp_error_locval reg_ierror : Expr.var_i -> string -> Compiler_util.pp_error_locval length_mismatch : Compiler_util.pp_error_locval reg_ierror_no_var : string -> Compiler_util.pp_error_loc