Suggestion list now binds Ctrl-G conditionally.

Unlike textlist_impl, in suggestionlist_impl any catchall keys are
forwarded instead of being eaten.  Therefore if Ctrl-G is bound to
something other than `abort` suggestionlist_impl should not bind it.

This is important for allowing fzf_git.lua to respond to Ctrl-G chords.
fzf_git.lua is a port of fzf-git.sh.

Author: chrisant996

clink/lib/src/suggestionlist_impl.cpp

@@ -231,7 +231,9 @@ void suggestionlist_impl::bind_input(binder& binder)
     binder.bind(m_bind_group, "\\e[$*B", bind_id_suggestionlist_wheeldown, true/*has_params*/);
     binder.bind(m_bind_group, "\\e[$*;*M", bind_id_suggestionlist_drag, true/*has_params*/);
 
-    binder.bind(m_bind_group, "^g", bind_id_suggestionlist_escape);
+    int32 type;
+    if (rl_function_of_keyseq("\x07", rl_get_keymap(), &type) == rl_abort)
+        binder.bind(m_bind_group, "^g", bind_id_suggestionlist_escape);
     if (esc)
         binder.bind(m_bind_group, esc, bind_id_suggestionlist_escape);