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c9db031c48
The color methods in formatted_raw_ostream were forwarding directly to the underlying stream without considering existing buffered output. This would cause incorrect colored output for buffered uses of formatted_raw_ostream. Fix this issue by applying the color to the formatted_raw_ostream itself and temporarily disabling scanning of any color related output so as not to affect the position tracking. This fix means that workarounds that forced formatted_raw_ostream buffering to be disabled can be removed. In the case of llvm-objdump, this can improve disassembly performance when redirecting to a file by more than an order of magnitude on both Windows and Linux. This improvement restores the disassembly performance when redirecting to a file to a level similar to before color support was added.