cmdb stage 3
cmdb stage 2
cmdb stage 1
IDE debugging support stage 1
C backend stage 3.4 (cfg)
C back end stage 3.3 (llvm debug info separated)
C back end stage 3.2 (unit tests compile)
C back end stage 3.1 (some unit tests work)
C back end stage 3 (system library compiles)
C back end stage 2.1