Set the cast kind to CK_NoOp for C-style casts that are really const casts. Fixes PR5248.

llvm-svn: 84514
diff --git a/clang/lib/Sema/SemaCXXCast.cpp b/clang/lib/Sema/SemaCXXCast.cpp
index ef1d128..c7aaa6f 100644
--- a/clang/lib/Sema/SemaCXXCast.cpp
+++ b/clang/lib/Sema/SemaCXXCast.cpp
@@ -1113,6 +1113,9 @@
   unsigned msg = diag::err_bad_cxx_cast_generic;
   TryCastResult tcr = TryConstCast(*this, CastExpr, CastTy, /*CStyle*/true,
                                    msg);
+  if (tcr == TC_Success)
+    Kind = CastExpr::CK_NoOp;
+
   if (tcr == TC_NotApplicable) {
     // ... or if that is not possible, a static_cast, ignoring const, ...
     tcr = TryStaticCast(*this, CastExpr, CastTy, /*CStyle*/true, R, msg,