Insert gotos to finally blocks when doing a return or goto from inside a try block to outside. Done after blocks are generated because then we know all the edges of the graph, but before the Bpred's are computed. Only for functions with no exception handling. Very similar to insertFinallyBlockCalls().
extern(C++) void insertFinallyBlockGotos (
.backend .cc .block* startblock
|startblock||first block in function|