Some refactoring in ControlFlowGraph
Some refactoring in ControlFlowGraph

Albiglittle/YaccConstructor,fedorovr/YaccConstructor,nbIxMaN/YaccConstructor,Albiglittle/YaccConstructor,fedorovr/YaccConstructor,Albiglittle/YaccConstructor,YaccConstructor/YaccConstructor,YaccConstructor/YaccConstructor,YaccConstructor/YaccConstructor,nbIxMaN/YaccConstructor,fedorovr/YaccConstructor,nbIxMaN/YaccConstructor