Changes

Adding more info to CodeCache::printOccupancyStats()

OMR::CodeCache::printOccupancyStats() prints to stderr
various information about the code cache usage such as:
- Whether it's full or not
- The values for the warmCodeAlloc and coldCodeAlloc pointers
- How much space is available in the hole between warmCodeAlloc and coldCodeAlloc
- The list of freed blocks that are available for reuse

This commit adds a new line of output that shows the sizes of
warm and cold sections of the code cache.

Signed-off-by: Marius <mpirvu@ca.ibm.com>
 (commit: 58ec479)