Revert r347417 "Re-Reinstate 347294 with a fix for the failures."

Kept the "indirect_builtin_constant_p" test case in test/SemaCXX/constant-expression-cxx1y.cpp
while we are investigating why the following snippet fails:

  extern char extern_var;
  struct { int a; } a = {__builtin_constant_p(extern_var)};

llvm-svn: 348039

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/lib/Sema/SemaOverload.cpp b/clang/lib/Sema/SemaOverload.cpp
index f36668f7614..ba4b67a23d4 100644
--- a/clang/lib/Sema/SemaOverload.cpp
+++ b/clang/lib/Sema/SemaOverload.cpp
@@ -5469,7 +5469,7 @@ static ExprResult CheckConvertedConstantExpression(Sema &S, Expr *From,
 
     if (Notes.empty()) {
       // It's a constant expression.
-      return ConstantExpr::Create(S.Context, Result.get());
+      return new (S.Context) ConstantExpr(Result.get());
     }
   }