semantics.c (setup_vtbl_ptr): Always build a CTOR_INITIALIZER if we're in a template.

* semantics.c (setup_vtbl_ptr): Always build a CTOR_INITIALIZER
        if we're in a template.

From-SVN: r48985

gcc/testsuite/g++.dg/template/vtable1.C

@@ -0,0 +1,23 @@
+// Test that vtables are set up properly for constructors and destructors
+// of template classes.
+
+// { dg-do run }
+
+int r;
+
+template <class T>
+struct A {
+  virtual void f () { }
+  A() { f (); }
+  ~A() { f (); }
+};
+
+struct B : public A<int> {
+  virtual void f () { ++r; }
+};
+
+int main ()
+{
+  { B b; }
+  return r;
+}