Fixed a subtle bug in specialize_branched_loops, that had to do with improperly naming let variables that we attempt to branch, but end up with only 1 branch.
Fixed a subtle bug in specialize_branched_loops, that had to do with improperly naming let variables that we attempt to branch, but end up with only 1 branch.


Former-commit-id: c2843f88327994e0a5642fee78c4ed40c52ab62c
Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide