MC: Add an MCLoggingStreamer, for use in debugging integrated-as mismatches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104463 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/CMakeLists.txt b/lib/MC/CMakeLists.txt
index af979f7..5e8a3b6 100644
--- a/lib/MC/CMakeLists.txt
+++ b/lib/MC/CMakeLists.txt
@@ -11,6 +11,7 @@
   MCInst.cpp
   MCInstPrinter.cpp
   MCLabel.cpp
+  MCLoggingStreamer.cpp
   MCMachOStreamer.cpp
   MCNullStreamer.cpp
   MCObjectWriter.cpp