Canonicalize types.

runtime/vm/code_generator_ia32.cc

Index: runtime/vm/code_generator_ia32.cc
===================================================================
--- runtime/vm/code_generator_ia32.cc	(revision 1040)
+++ runtime/vm/code_generator_ia32.cc	(working copy)
@@ -2170,10 +2170,10 @@
   if (instantiator_class.NumTypeParameters() == 0) {
     // The type arguments are compile time constants.
     TypeArguments& type_arguments = TypeArguments::ZoneHandle();
-    const Type& type = Type::Handle(
+    Type& type = Type::Handle(
         Type::NewParameterizedType(instantiator_class, type_arguments));
-    const String& errmsg = String::Handle(
-        ClassFinalizer::FinalizeTypeWhileParsing(type));
+    String& errmsg = String::Handle();
+    type = ClassFinalizer::FinalizeAndCanonicalizeType(type, errmsg);
     if (!errmsg.IsNull()) {
       ErrorMsg(token_index, errmsg.ToCString());
     }