It broke lit tests on Mac, see comments on the code review. > Reviewed By: vitalybuka, dvyukov > > Differential Revision: https://reviews.llvm.org/D147337 This reverts commit ebb0f1d0639eeca5479fa4bfdc1ebcebf5c21dee and follow-up commit 3c83aeee6b7d5e9ac5de1e29605ee57c2b800ca1.