Ticket #7884: added regression test

Author: orbitcowboy

test/testgarbage.cpp

@@ -241,6 +241,7 @@ class TestGarbage : public TestFixture {
         TEST_CASE(garbageCode213); // #8758
         TEST_CASE(garbageCode214);
         TEST_CASE(garbageCode215); // daca@home script with extension .c
+        TEST_CASE(garbageCode216); // #7884
 
         TEST_CASE(garbageCodeFuzzerClientMode1); // test cases created with the fuzzer client, mode 1
 
@@ -1666,6 +1667,12 @@ class TestGarbage : public TestFixture {
         ASSERT_THROW(checkCode("a = [1,2,3];"), InternalError);
     }
 
+    void garbageCode216() { // #7884
+        checkCode("template<typename> struct A {};\n"
+                  "template<typename...T> struct A<T::T...> {}; \n"
+                  "A<int> a;");
+    }
+
     void syntaxErrorFirstToken() {
         ASSERT_THROW(checkCode("&operator(){[]};"), InternalError); // #7818
         ASSERT_THROW(checkCode("*(*const<> (size_t); foo) { } *(*const (size_t)() ; foo) { }"), InternalError); // #6858