[m-rev.] for review: better error messages for lambda exprs

[Mark Brown]

On Wed, May 18, 2016 at 4:22 AM, Zoltan Somogyi
<zoltan.somogyi at runbox.com> wrote:
> Are there any objections to commiting the changes
> to the parsing of the lambda expressions only,
> without the changes to the parsing of @, ^, := etc?

Not from me.

Mark