Rename test to match C++1y paragraph number per N3690, and add additional test

case inspired by a stackoverflow question.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@185772 91177308-0d34-0410-b5e6-96231b3b80d8

test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p6-1y.cpp → test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p7-1y.cpp

@@ -8,9 +8,6 @@ namespace std {
   };
 }
 
-// FIXME: This may not be p6 in C++1y; N3638 isn't very clear whether paragraphs
-// were added. It might be p8?
-
 int i;
 int &&f();
 

test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p7.cpp

@@ -29,4 +29,17 @@ void g() {
        (*e)() -> void,
 #endif
        f = 0.0;
+
+#if __has_feature(cxx_decltype)
+  auto g = 0ull, h = decltype(g)(0);
+#endif
+}
+
+template<typename T> void h() {
+  auto a = T(), *b = &a;
+#if __has_feature(cxx_decltype)
+  auto c = T(), d = decltype(c)(0);
+#endif
 }
+template void h<int>();
+template void h<unsigned long>();