No need to do this when collecting deferred names, just do it for
display purposes. It's safer anyway, due to potential name clashes in
the normalisation. Fixes#2806
We've always said that the rules for binding names in patterns are the
same as the rules for binding names in implicits, i.e. a name beginning
with a lower case letter, not applied to anything, will be bound
implicitly, or treated as a pattern variable. This hasn't actually
always been quite true, even though it was supposed to be...
Correspondingly, added a warning for constructor names which may be
unexpectedly bound implicitly.
This patch changes the pattern binding rules so that it is the case.
Fixes#2653
The changes are as follows:
+ `print` is for putting showable things to STDOUT.
+ `printLn` is for putting showable things to STDOUT with a new line
+ `putCharLn` for putting a single character to STDOUT, with a new line.
Effects has been updated accordingly.
