* Implementation of Clicks Combined Analysis/Optimisations
* New switch lowering code
* support for global asm statements
* Implementation of Clicks Combined Analysis/Optimisations
* New switch lowering code
* support for global asm statements
* Improvements to spill algorithm
* fix endless loop problems
* further improve inlining heuristics
* Improvements to spill algorithm
* fix endless loop problems
* further improve inlining heuristics