readline: fix key name for function keys combined with modifiers
Added proper key names for function key (e.g. F4) combined with modifiers (e.g. Ctrl).
I also added support for:
- Alt + Enter
- Alt + KeypadEnter
- Alt + Backspace
Fixes #35251 (closed)
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
commit message follows commit guidelines