Fix compilation warning about unused variable [NFC]

Without the fix at least clang 3.6 complains with

../tools/clang/lib/AST/ExprConstant.cpp:90:24: error: unused variable 'TI' [-Werror,-Wunused-variable]
    if (TypeInfoLValue TI = B.dyn_cast<TypeInfoLValue>())
                       ^
1 error generated.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@361145 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/AST/ExprConstant.cpp b/lib/AST/ExprConstant.cpp
index 856efc82941eb4a10ef87a982f8b79cbc3025f9d..e654480f09419a4010a7cc236b6dcd84d0c45d66 100644 (file)
--- a/lib/AST/ExprConstant.cpp
+++ b/lib/AST/ExprConstant.cpp
@@ -87,7 +87,7 @@ namespace {
       return D->getType();
     }
 
-    if (TypeInfoLValue TI = B.dyn_cast<TypeInfoLValue>())
+    if (B.is<TypeInfoLValue>())
       return B.getTypeInfoType();
 
     const Expr *Base = B.get<const Expr*>();