re PR c++/72845 (gcc crashes (ICE) when compiling program with complex noexcept declaration)

	PR c++/72845
	* g++.dg/cpp0x/noexcept41.C: New test.

From-SVN: r272078

gcc/testsuite/ChangeLog

+2019-06-08  Marek Polacek  <polacek@redhat.com>
+
+	PR c++/72845
+	* g++.dg/cpp0x/noexcept41.C: New test.
+
 2019-06-08  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 
 	* gcc.target/aarch64/sve/init_1.c: Remove options

gcc/testsuite/g++.dg/cpp0x/noexcept41.C

+// PR c++/72845
+// { dg-do compile { target c++11 } }
+
+template <typename> struct g { static const int h = 0; };
+template <typename i> void declval() { static_assert(!g<i>::h,""); }
+template <typename> struct a {
+  template <typename d, typename c>
+  friend auto f(d &&, c &&) noexcept(declval<c>) -> decltype(declval<c>); // { dg-error "different exception" }
+};
+template <typename d, typename c> auto f(d &&, c &&) -> decltype(declval<c>);
+struct e {};
+static_assert((e{}, declval<a<int>>),""); // { dg-error "no context to resolve type" }