Make a stub version of MITests, instead of reverting.

Lit tends to find out-of-date unittests in the build tree.

FIXME: It may be reverted several days after.
llvm-svn: 261194

unittests/CMakeLists.txt

@@ -22,6 +22,7 @@ add_subdirectory(IR)
 add_subdirectory(LineEditor)
 add_subdirectory(Linker)
 add_subdirectory(MC)
+add_subdirectory(MI)
 add_subdirectory(Option)
 add_subdirectory(ProfileData)
 add_subdirectory(Support)

unittests/MI/CMakeLists.txt

@@ -0,0 +1,7 @@
+set(LLVM_LINK_COMPONENTS
+  Support
+  )
+
+add_llvm_unittest(MITests
+  LiveIntervalTest.cpp
+  )

unittests/MI/LiveIntervalTest.cpp

@@ -0,0 +1,6 @@
+#include "gtest/gtest.h"
+
+// FIXME: It may be removed when practical tests came.
+TEST(LiveIntervalTest, DummyStub) {
+  EXPECT_TRUE(true);
+}