* lowering of CopyB nodes
* better memory disambiguator
* float->64bit conversion fixed for x87
* removed old verbosity level based debugging: all modules ese the new debug facility
* Improved Confirm based optimization and conditional evaluation (using Confirm nodes)
* BugFixes: tail recursion, load/store optimization, lowering of structure return, conditional
* lowering of CopyB nodes
* better memory disambiguator
* float->64bit conversion fixed for x87
* removed old verbosity level based debugging: all modules ese the new debug facility
* Improved Confirm based optimization and conditional evaluation (using Confirm nodes)
* BugFixes: tail recursion, load/store optimization, lowering of structure return, conditional