Make scanl-detection tolerant against deeply nested let-expressions.
Fix a missing part of the code from merging.
Do not call setLength on potentially uninitialized arrays.
Whitespace fix.
Add array literals as a data type, and re-enable some old code for that that
was commented out. Currently no in-tree consumers.
Merge pull request #79 from pjonsson/arraylits

Add array literals as a data type
Merge pull request #78 from pjonsson/bugfixes

Do not call setLength on potentially uninitialized arrays.
Merge pull request #77 from pjonsson/scan-tolerance

Make scanl-detection tolerant against deeply nested let-expressions.