Caught a simple typo. I do not know of a way to test this, but it seems like an unlikely thing to regress in the future.

llvm-svn: 290757
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp
index 5895cad..afba158 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.cpp
+++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp
@@ -1369,7 +1369,7 @@
 
   case ARMISD::PRELOAD:       return "ARMISD::PRELOAD";
 
-  case ARMISD::WIN__CHKSTK:   return "ARMISD:::WIN__CHKSTK";
+  case ARMISD::WIN__CHKSTK:   return "ARMISD::WIN__CHKSTK";
   case ARMISD::WIN__DBZCHK:   return "ARMISD::WIN__DBZCHK";
 
   case ARMISD::VCEQ:          return "ARMISD::VCEQ";