Allow binding captureless lambdas into base::Callback by base::Bind

base/bind_unittest.nc

Index: base/bind_unittest.nc
diff --git a/base/bind_unittest.nc b/base/bind_unittest.nc
index bdbcd2f22378587b5a404967893f152c43c9abda..e60de076b58c9686a679f02c6a43e0a67d87eaf6 100644
--- a/base/bind_unittest.nc
+++ b/base/bind_unittest.nc
@@ -201,6 +201,13 @@ void WontCompile() {
   Closure callback_mismatches_bind_type = Bind(&VoidPolymorphic1<int>);
 }
 
+#elif defined(NCTEST_DISALLOW_CAPTURING_LAMBDA)  // [r"fatal error: implicit instantiation of undefined template 'base::internal::FunctorTraits<\(lambda at ../../base/bind_unittest.nc:[0-9]+:[0-9]+\), void>'"]
+
+void WontCompile() {
+  int i = 0;
+  Bind([i]() {});
+}
+
 #endif
 
 }  // namespace base