* module/ice-9/boot-9.scm:
* module/ice-9/scm-style-repl.scm (handle-system-error): Move here from
boot-9.
* module/ice-9/deprecated.scm (handle-system-error): Keep a deprecated
wrapper in the root environment.
* module/ice-9/boot-9.scm (*repl-level*): New global fluid, moved here
from (system repl common).
(batch-mode?): Reimplement in terms of *repl-level*.
(ensure-batch-mode!): A replacement for set-batch-mode?!.
* module/ice-9/deprecated.scm (set-batch-mode?!): Deprecate.
* module/ice-9/popen.scm (open-process): Use ensure-batch-mode!.
* module/ice-9/scm-style-repl.scm (error-catching-loop): Override
ensure-batch-mode!.
* module/system/repl/common.scm: Remove *repl-level*.
* module/ice-9/boot-9.scm:
* module/ice-9/scm-style-repl.scm (scm-repl-silent, assert-repl-silence)
(scm-repl-print-unspecified, assert-repl-print-unspecified)
(scm-repl-verbose, assert-repl-verbosity)
(scm-repl-prompt): Move these definitions here from boot-9.scm.
* module/ice-9/deprecated.scm (assert-repl-silence):
(assert-repl-print-unspecified, assert-repl-verbosity): Deprecated
wrappers for the functions. I'm not sure if the variables can be
helped though.
* module/ice-9/boot-9.scm:
* module/ice-9/scm-style-repl.scm (bad-throw): Move here. This function
was never documented, but has been around since guile-ii. It's not
used with current code though.
* module/ice-9/deprecated.scm: Provide bad-throw in default env.
* module/ice-9/debugger/commands.scm: Import bad-throw from
scm-style-repl.
* module/Makefile.am:
* module/ice-9/scm-style-repl.scm: New file, to hold the old
scm-style-repl.
* module/ice-9/deprecated.scm: Provide scm-style-repl and
error-catching-loop and error-catching-repl in the default env, but
with deprecation warnings.
