re PR c++/70156 (incorrect "incomplete type" error initializing a static const data member)

	PR c++/70156
	* g++.dg/init/static5.C: New test.

From-SVN: r271192

gcc/testsuite/ChangeLog

+2019-05-14  Marek Polacek  <polacek@redhat.com>
+
+	PR c++/70156
+	* g++.dg/init/static5.C: New test.
+
 2019-05-14  Iain Sandoe  <iain@sandoe.co.uk>
 
 	PR target/82920

gcc/testsuite/g++.dg/init/static5.C

+// PR c++/70156
+// { dg-do compile { target c++11 } }
+
+template <int> struct A { int i; };
+struct B { int i; };
+struct C {
+    static const A<0> a = { 0 }; // { dg-error ".constexpr. needed for in-class initialization of static data member" }
+    static const B b = { 1 }; // { dg-error ".constexpr. needed for in-class initialization of static data member" }
+};