BUG: The search through the list of dominators should continue until a dominator is found.  Thanks to Mark Gebhart.
BUG: The search through the list of dominators should continue until a dominator is found.  Thanks to Mark Gebhart.

Former-commit-id: 31983b703466689ddf29cb3d95e76ed198e670c4
gtcasl/gpuocelot,gtcasl/gpuocelot,gtcasl/gpuocelot,gtcasl/gpuocelot,gtcasl/gpuocelot,3upperm2n/gpuocelot,gtcasl/gpuocelot,3upperm2n/gpuocelot,3upperm2n/gpuocelot,3upperm2n/gpuocelot,3upperm2n/gpuocelot,3upperm2n/gpuocelot