Fix Lang's fix. This should fix the tests for +Asserts builds.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157561 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/MicrosoftMangle.cpp b/lib/AST/MicrosoftMangle.cpp
index c2811fb..feb1fa3 100644
--- a/lib/AST/MicrosoftMangle.cpp
+++ b/lib/AST/MicrosoftMangle.cpp
@@ -317,7 +317,7 @@
     char Encoding[64];
     char *EndPtr = Encoding+sizeof(Encoding);
     char *CurPtr = EndPtr;
-    llvm::APSInt NibbleMask(Value.getBitWidth());
+    llvm::APSInt NibbleMask(Value.getBitWidth(), Value.isUnsigned());
     NibbleMask = 0xf;
     for (int i = 0, e = Value.getActiveBits() / 4; i != e; ++i) {
       *--CurPtr = 'A' + Value.And(NibbleMask).lshr(i*4).getLimitedValue(0xf);