tsan: refactor signal handling code (move some definitions out of common header)

llvm-svn: 159266
diff --git a/compiler-rt/lib/tsan/rtl/tsan_mman.h b/compiler-rt/lib/tsan/rtl/tsan_mman.h
index b0f86c9..b338a9c 100644
--- a/compiler-rt/lib/tsan/rtl/tsan_mman.h
+++ b/compiler-rt/lib/tsan/rtl/tsan_mman.h
@@ -52,6 +52,7 @@
   MBlockReportStack,
   MBlockSuppression,
   MBlockExpectRace,
+  MBlockSignal,
 
   // This must be the last.
   MBlockTypeCount,