422ad5c296
Following the addition of the --language optiton to all GDB/MI commands, I realized that there was no easy way for front-ends to figure out whether this features is available or not. So I added a "language-option" entry to -list-features. gdb/ChangeLog: * mi/mi-main.c (mi_cmd_list_features): Add "language-options" to -list-features output. gdb/doc/ChangeLog: * gdb.texinfo (GDB/MI Miscellaneous Commands): Document the new "language-option" entry in the output of the "-list-features" command.