* g++.dg/cpp1z/fold-lambda3.C: Add test for 88183.

From-SVN: r269294

gcc/testsuite/g++.dg/cpp1z/fold-lambda3.C

+// PR c++/88183
+// { dg-do compile { target c++17 } }
+
+struct A { int i; };
+
+template <class T> T& g(T);
+
+template <class U, class... Vs>
+void f(U u, Vs... vs)
+{ 
+  [vs...](auto x) {
+    (g(x) .* ... .* vs) = 42;
+  }(u);
+}
+
+int main()
+{
+  f(A(), &A::i);
+}