LocalDate profiling datapoint

[Stephen Colebourne]

Just a quick datapoint from some memory profiling I did today on our
business application.

It turns out that LocalDate is the second largest user of memory in
the small application I was testing, at around 11% of memory (the
largest was String at around 25%). I guess it emphasises how value
types could help, but also how important it is to be able to migrate
existing types like LocalDate.

Anyway, thanks for continuing to work on this!
Stephen