This reverts commit 08a4085. The change breaks `nvro.cpp` in the debugging tests on the buildbot (https://lab.llvm.org/buildbot/#/builders/46/builds/32873) but works locally for me. It might be because the buildbot is using an older Windows SDK. In addition, it reverts parts of #188769 (using `.` over `->`).
This directory contains tests for the MIR file format parser and printer. It was necessary to split the tests across different targets as no single target covers all features available in machine IR. Tests for codegen passes should NOT be here but in test/CodeGen/sometarget. As a rule of thumb this directory should only contain tests using 'llc -run-pass none'.