Hang on showremotecontext

[albfan]

https://github.com/albfan/vim-breakpts/blob/master/autoload/breakpts.vim#L1304

WaitForDbgPrompt() is at least a scary function, prone to hang. :BPDNext in last line of debugging functions many times arises a hang. You can solve with "Ctrl-C" but is annoying.

Consider using;

http://vimdoc.sourceforge.net/htmldoc/autocmd.html#RemoteReply
http://vimdoc.sourceforge.net/htmldoc/eval.html#server2client()

to wait for reply asynchronously