don't show keymap @error for hints

Author: IanButterworth

stdlib/REPL/src/LineEdit.jl

@@ -264,7 +264,7 @@ const COMMAND_GROUPS =
                           :edit_upper_case, :edit_lower_case, :edit_title_case, :edit_indent,
                           :edit_transpose_lines_up!, :edit_transpose_lines_down!],
          :copy        => [:edit_copy_region],
-         :misc        => [:complete_line, :setmark, :edit_undo!, :edit_redo!])
+         :misc        => [:complete_line, :complete_line_hint, :setmark, :edit_undo!, :edit_redo!])
 
 const COMMAND_GROUP = Dict{Symbol,Symbol}(command=>group for (group, commands) in COMMAND_GROUPS for command in commands)
 command_group(command::Symbol) = get(COMMAND_GROUP, command, :nogroup)
@@ -382,6 +382,7 @@ function check_for_hint(s::MIState)
         # Requires making space for them earlier in refresh_multi_line
         return clear_hint(st)
     end
+    set_action!(s, :complete_line_hint)
     completions, partial, should_complete = complete_line(st.p.complete, st, s.active_module; hint = true)::Tuple{Vector{String},String,Bool}
     isempty(completions) && return clear_hint(st)
     # Don't complete for single chars, given e.g. `x` completes to `xor`
@@ -2871,7 +2872,9 @@ function prompt!(term::TextTerminal, prompt::ModalInterface, s::MIState = init_s
                 try
                     status = fcn(s, kdata)
                 catch e
-                    @error "Error in the keymap" exception=e,catch_backtrace()
+                    if s.current_action != :complete_line_hint
+                        @error "Error in the keymap" exception=e,catch_backtrace()
+                    end
                     # try to cleanup and get `s` back to its original state before returning
                     transition(s, :reset)
                     transition(s, old_state)