84027c4457
This CL adds a flag --print-flow-graph-file which produces one .cfg-file per isolate when enabled. Currently it prints the final flow graph before code generation. I also added SuccessorAt and SuccessorCount to allow easy iteration over the successors of a basic block. Review URL: https://chromiumcodereview.appspot.com//10446116 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@8322 260f80e4-7a28-3924-810f-c04153c831b5