Leaving isearch-mode and keeping the highlite

[Lennart Borgman]

I would find it very helpful to be able to leave isearch-mode but keep 
the highlite. Is this something other would find helpful too?

It is of course a new feature, but it can possible not break anything 
(except isearch highliting but that is easy to check). It we want this I 
would suggest to put it on C-RET or S-RET in isearch-mode-map. The main 
question is perhaps if we want it.