fix(api): use original LHS in keymap error message #33135

When setting a keymap with "unique" that already exists the error
message contains the LHS of the keymap with termcodes replaced. In
particular this means that keys like <Tab> show as an actual tab
character, meaning the error message displays as "Mapping already exists
for ", which is hard to debug for users.

Instead, display the original LHS (without any simplification or parsed
termcodes). This rperesents exactly what the user passed to the `lhs`
argument of `nvim_set_keymap`, which makes it easier to find where the
offending keymap is.

0 files changed, 0 insertions, 0 deletions