llvm::outs() crashes on windows from some environments (powershell)
llvm::outs() crashes on windows from some environments (powershell)

Former-commit-id: 9e4c9080b548ddc2fd030b4953c577a2a08b4d99
darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide