Support type parameters and classes as expression in the vm.

runtime/vm/il_printer.cc

Index: runtime/vm/il_printer.cc
===================================================================
--- runtime/vm/il_printer.cc	(revision 24806)
+++ runtime/vm/il_printer.cc	(working copy)
@@ -554,6 +554,13 @@
 }
 
 
+void InstantiateTypeInstr::PrintOperandsTo(BufferFormatter* f) const {
+  const String& type_name = String::Handle(type().Name());
+  f->Print("%s, ", type_name.ToCString());
+  instantiator()->PrintTo(f);
+}
+
+
 void InstantiateTypeArgumentsInstr::PrintOperandsTo(BufferFormatter* f) const {
   const String& type_args = String::Handle(type_arguments().Name());
   f->Print("%s, ", type_args.ToCString());