Compiler segfault when getting a nonexistant member from an unnamed struct #2533.

test/test_suite/struct/missing_anon_access.c3

@@ -0,0 +1,11 @@
+struct Test
+{
+	struct { int x; }
+}
+
+fn void main()
+{
+	Test t;
+	Test.membersof[0].get(t).x;
+	Test.membersof[0].get(t).y; // #error: here is no field or method 'Test.(anon).y'
+}