fix a GCC type punning warning.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79895 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/TreeTransform.h b/lib/Sema/TreeTransform.h
index a001254..258993e 100644
--- a/lib/Sema/TreeTransform.h
+++ b/lib/Sema/TreeTransform.h
@@ -1164,13 +1164,11 @@
                                                 SourceLocation LParenLoc,
                                                 ExprArg SubExpr,
                                                 SourceLocation RParenLoc) {
-    Expr *Sub = SubExpr.takeAs<Expr>();
+    void *Sub = SubExpr.takeAs<Expr>();
     return getSema().ActOnCXXTypeConstructExpr(TypeRange,
                                                T.getAsOpaquePtr(),
                                                LParenLoc,
-                                               Sema::MultiExprArg(getSema(),
-                                                                  (void **)&Sub,
-                                                                  1),
+                                         Sema::MultiExprArg(getSema(), &Sub, 1),
                                                /*CommaLocs=*/0, 
                                                RParenLoc);
   }