Adding operator testing for crasher.

Also includes some crash logs.
Adding missing pop_stack call
Fix crasher in f_uncompress_file
reset eval limit for each efun calls in crasher.
Crasher: adding type checking in f_ed().
Crasher: check type for f_remove_get_char().
Crasher: dump_prog type checking.
Crasher: f_localtime type check.
Crasher: f_terminal_color().
Crasher: unique_mapping crasher.
Crasher: save_object.
Fix testsuite, adding new save_object test.
Crasher: save_object(int)
Crasher: remove_get_char on non-interactive object.