Avoid a compiler warning about Found not being used when assertions are

disabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190668 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/IPO/FunctionAttrs.cpp

@@ -367,6 +367,7 @@ namespace {
         }
       }
       assert(Found && "Capturing call-site captured nothing?");
+      (void)Found;
       return false;
     }