Fix refactoro, silencing an MSVC warning. Thanks, Francois.

llvm-svn: 133257
diff --git a/clang/lib/Sema/SemaTemplateDeduction.cpp b/clang/lib/Sema/SemaTemplateDeduction.cpp
index ef5a59a..af35931 100644
--- a/clang/lib/Sema/SemaTemplateDeduction.cpp
+++ b/clang/lib/Sema/SemaTemplateDeduction.cpp
@@ -2350,7 +2350,7 @@
     if (AQuals == DeducedAQuals) {
       // Qualifiers match; there's nothing to do.
     } else if (!DeducedAQuals.compatiblyIncludes(AQuals)) {
-      return Sema::TDK_SubstitutionFailure;
+      return true;
     } else {        
       // Qualifiers are compatible, so have the argument type adopt the
       // deduced argument type's qualifiers as if we had performed the