Problem: :echomsg and :echoerr do not handle List and Dict like :echo does.
(Daniel Hahler)
Solution: Be more tolerant about the expression result type.
461a7fcfce
Add lua functional tests for :echo,:echon,:echomsg,:echoerr
because nvim did not port "test_" functions from Vim
that modify internal state.
Testing :echoerr via try/catch is sufficient.
Problem: It is not possible to only see part of the message history. It is
not possible to clear messages.
Solution: Add a count to ":messages" and a clear argument. (Yasuhiro
Matsumoto)
451f849fd6
