* remote.c (remote_open_1): Move "ex"'s declaration to where it is
used.
(remote_get_thread_local_address): Use throw_error, include a
printed string.
* linux-thread-db.c (thread_db_get_thread_local_address): Ditto.
* dwarf2loc.c (dwarf_expr_tls_address): Ditto.
* cli/cli-script.c (script_from_file): Mark up throw_error message.
* linespec.c (symtab_from_filename, decode_variable): Ditto.