Patch: Bitmap descriptor GC marking

[Bryce McKinlay]

Bryce McKinlay wrote:

> - the heap in some cases grows much bigger than usual when using arrays.

> bigArrays()   : .......... 46094ms  (heap: total=63420K free=17804K)

There's something else I noticed about that. If the "Byte" class in "bigArrays()"
is replaced with <some class that has at least one pointer>, the problem goes
away...

regards

  [ bryce ]